User:John Leach/workshop4
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- 10 Downing Street/Definition
- 105mm howitzer/Definition
- 10th Congressional District of Massachusetts/Definition
- 11th Hour Remnant Messenger/Definition
- 12" naval gun/Definition
- 160th Special Operations Aviation Regiment/Definition
- 175mm gun/Definition
- 18.1"-45 caliber naval gun/Definition
- 1944 Quebec Conference/Definition
- 1960 United States presidential election/Definition
- 1967 Arab-Israeli War/Definition
- 1979 Iranian Islamic revolution/Definition
- 1981 Israeli operations in Beirut/Definition
- 1981 Raid on Osirak/Definition
- 1982 Israeli campaign in Lebanon/Definition
- 1984 U.S. Presidential campaign/Definition
- 1991 Iraqi missile strikes on Israel/Definition
- 1st Armored Division (U.S.)/Definition
- 1st Heavy Brigade Combat Team/Definition
- 1st Marine Division/Definition
- 1st Stryker Brigade Combat Team/Definition
- 2002 bombing of Tunisian synagogue/Definition
- 2004 United States presidential election/Definition
- 2012 (film)/Definition
- 280mm naval gun/Definition
- 28th Bomb Wing/Definition
- 2nd Armored Division (U.S.)/Definition
- 2nd Congressional District of South Carolina/Definition
- 2nd Heavy Brigade Combat Team/Definition
- 2nd Marine Division/Definition
- 2nd Stryker Brigade Combat Team/Definition
- 32X/Definition
- 3rd Stryker Brigade Combat Team/Definition
- 4.5" naval gun/Definition
- 4.5"-45 caliber gun/Definition
- 4th Infantry Brigade Combat Team/Definition
- 4th Stryker Brigade Combat Team/Definition
- 5" naval gun/Definition
- 501(c)(3)/Definition
- 501(c)(4)/Definition
- 57mm naval gun/Definition
- 5th Congressional District of New York/Definition
- 6" naval gun/Definition
- 76mm naval gun/Definition
- 7th Bomb Wing/Definition
- 88mm gun/Definition
- 9-11 Hijackers/Definition
- 9Dragons/Definition
- A Galaxy Called Rome/Definition
- A Theory of Justice/Definition
- A Treatise Concerning the Principles of Human Knowledge/Definition
- A priori/Definition
- A-4 Skyhawk/Definition
- A-6 Intruder/Definition
- A-frame crane/Definition
- AAR-60/Definition
- ABVD/Definition
- ADM-20 Quail/Definition
- AGM-130/Definition
- AH-1/Definition
- AH-60L/Definition
- ALE-20/Definition
- ALE-24/Definition
- ALE-37/Definition
- ALM-233/Definition
- ALQ-122/Definition
- ALQ-155/Definition
- ALQ-172/Definition
- ALQ-176/Definition
- ALR-20/Definition
- ALR-41/Definition
- ALR-46/Definition
- AMD Athlon series/Definition
- AMD Opteron series/Definition
- AMD Quad-Core series/Definition
- AMD Sempron series/Definition
- AMD Turion series/Definition
- ARA General Belgrano/Definition
- ARC-201/Definition
- ASW-55/Definition
- ATsU pod/Definition
- AVQ-26/Definition
- AVS-6/Definition
- AXQ-14/Definition
- AZON/Definition
- Aalib/Definition
- Aamir Rehman/Definition
- Aaron Copland/Definition
- Aaron Hanscom/Definition
- Aaron Klein/Definition
- Aaron Mannes/Definition
- Aaron Schock/Definition
- Abc (alphabet)/Definition
- Abd Abdullah/Definition
- Abd Hamid Mahmud Al Khatab Al Nasiri/Definition
- Abdul Kabir/Definition
- Abdul Kareem al Eryani/Definition
- Abdul Latif Mansur/Definition
- Abdul Niyazic/Definition
- Abdul Qayoum Zakir/Definition
- Abdul Raouf/Definition
- Abdul Salam/Definition
- Abdulhai Mutmain/Definition
- Abdullah Anas/Definition
- Abdullah II (Jordan)/Definition
- Abigail Thenstrom/Definition
- Abner Mikva/Definition
- Abraham Baldwin/Definition
- Absolute pitch/Definition
- Absurdity/Definition
- Abubakr al-Qirbi/Definition
- Accent (art)/Definition
- Accent (linguistics)/Definition
- Accent (poetry)/Definition
- Accent (programming language)/Definition
- Accent (pronunciation)/Definition
- Accent (writing)/Definition
- Accent kernel/Definition
- Access barrier/Definition
- Accuracy/Definition
- Accuracy in Media/Definition
- Accuracy of measurement/Definition
- Acoustics/Definition
- Acquis/Definition
- Acquis Communitaire/Definition
- Acquis communitaire/Definition
- Acromion/Definition
- Actinide/Definition
- Active radar/Definition
- Active radar homing/Definition
- Acupressure/Definition
- Acute cardiac syndrome/Definition
- Acute myeloid leukemia/Definition
- Acute phase reaction/Definition
- Acute posttraumatic stress disorder/Definition
- Adam Albright/Definition
- Adam Blickstein/Definition
- Adam Habib/Definition
- Adam Pearlman/Definition
- Adam Putnam/Definition
- Adam Schiff/Definition
- Adam Shoalts/Definition
- Adam Smith (politician)/Definition
- Adam Thierer/Definition
- Adam Waldman/Definition
- Adams-class/Definition
- Adipe/Definition
- Adjutant/Definition
- Adlai E. Stevenson/Definition
- Adolf Pokorny/Definition
- Adonis/Definition
- Adriaan Verheul/Definition
- Adrian Basora/Definition
- Adult/Definition
- Adult Industry Health Foundation/Definition
- Adverse selection/Definition
- Aegean Sea/Definition
- Aegeus/Definition
- Aerope/Definition
- Aerosol dispersion/Definition
- Aerospace surveillance/Definition
- Aerozine 50/Definition
- Aeschylus/Definition
- Affiliation (institutional)/Definition
- Afser Shariff/Definition
- Age (biology)/Definition
- Agency cost/Definition
- Agenzia Informazioni e Sicurezza Esterna/Definition
- Agenzia informazioni e sicurezza interna/Definition
- Aging (materials)/Definition
- Agnosia/Definition
- Agricultural Adjustment Administration/Definition
- Ahmad Shah Abdali/Definition
- Ahmed Fathi Sorour/Definition
- Ahmed Jan Akhunzada/Definition
- Ahmed Shah Massoud/Definition
- Ahmed Wali Karzai/Definition
- Aichi D3A1 Val/Definition
- Aigeus/Definition
- Aigisthos/Definition
- Air Defense Identification Zone/Definition
- Air Self-Defense Force/Definition
- Airbrush/Definition
- Aithra/Definition
- Akbar Ahmed/Definition
- Al Green/Definition
- Al-Azhar University/Definition
- Al-Jihad/Definition
- Al-Manar television/Definition
- Al-Tawhid/Definition
- Alain Juppé/Definition
- Alaleh Azarkhish/Definition
- Alan Blinder/Definition
- Alan Carlson/Definition
- Alan Greenspan/Definition
- Alan Paton/Definition
- Alan Pino/Definition
- Alan Simpson/Definition
- Alaska-class/Definition
- Alastair Campbell/Definition
- Albany-class/Definition
- Albert Camus/Definition
- Albert J. Beveridge/Definition
- Albert Regnery/Definition
- Alberto Bolivar/Definition
- Alberto Mora/Definition
- Alcee Hastings/Definition
- Alcestis/Definition
- Alcmene/Definition
- Alemtuzumab/Definition
- Alessandro Cicognini/Definition
- Alex Avery/Definition
- Alex Rainert/Definition
- Alexander Bligh/Definition
- Alexander Haig/Definition
- Alexander Martin/Definition
- Alexander Watson/Definition
- Alexei Arbatov/Definition
- Alfentanil/Definition
- Alfons Sack/Definition
- Alfred M. Landon/Definition
- Algae Harvesting for Biofuel Production/Definition
- Algorithm (finance)/Definition
- Ali Abdallah Salih/Definition
- Alice Munro/Definition
- Alice Rivlin/Definition
- Alice Roberts (actress)/Definition
- Alice Roberts (scientist)/Definition
- Aliphatic nitrate esters/Definition
- Alison Fortier/Definition
- Alison Weir (British)/Definition
- Alix Boucher/Definition
- Aliyah/Definition
- Aliza Davidovit/Definition
- Alkylating agent/Definition
- All About God/Definition
- Allen Ginsborg/Definition
- Allen Kukovich/Definition
- Allen M. Sumner-class/Definition
- Allied health occupations/Definition
- Allocative efficiency/Definition
- Allyson Schwartz/Definition
- Alpha (finance)/Definition
- Alpha USA/Definition
- Alpha melanocyte stimulating hormone/Definition
- Altaf Husain/Definition
- Alto/Definition
- Alton B. Parker/Definition
- Alton Frye/Definition
- Alton Keel, Jr./Definition
- Aluminium powder/Definition
- Alvaro de Soto/Definition
- Amanda Bowman/Definition
- Amartya Sen/Definition
- Amatol/Definition
- Amazon (mythology)/Definition
- Amazon rainforest/Definition
- Amazons/Definition
- American Airlines Flight 77/Definition
- American Association of Museums/Definition
- American Center for Law and Justice/Definition
- American Conservative (magazine)/Definition
- American Family Association/Definition
- American Foundation for the Blind/Definition
- American Free Press/Definition
- American Friends Service Committee/Definition
- American Friends of the British National Party/Definition
- American Front/Definition
- American Idol/Definition
- American Jewish Committee/Definition
- American Library Association/Definition
- American Muslim Alliance/Definition
- American Prospect/Definition
- American Red Cross/Definition
- American Renaissance/Definition
- American Society for International Law/Definition
- American Spectator/Definition
- American Vision/Definition
- Americans for Fair Taxation/Definition
- Americans for Tax Reform/Definition
- Ami Ayalon/Definition
- Amir Al-Islam/Definition
- Ammonal/Definition
- Ammonia/Definition
- Amnon Lipkin-Shahak/Definition
- Amortization/Definition
- Amos Guiora/Definition
- Amos Schocken/Definition
- Amphibious ready group/Definition
- Amphibious ship/Definition
- Amphitryon/Definition
- Amputation/Definition
- Amr Moussa/Definition
- Amusia/Definition
- Amy Friedkin/Definition
- Amy Klobuchar/Definition
- Amy Kremer/Definition
- Amy Margerum/Definition
- Amy Newhall/Definition
- Anand Panyarachun/Definition
- Anarchy, State and Utopia/Definition
- Anatoly Golitsyn/Definition
- Anatomical atlas/Definition
- Anaximenes/Definition
- Anchoring heuristic/Definition
- Ander Crenshaw/Definition
- Anderson Air Force Base/Definition
- Andre Carson/Definition
- Andrea Batista Schlesinger/Definition
- Andrea Leadsom/Definition
- Andrei Piontkovsky/Definition
- Andrew Erdmann/Definition
- Andrew Garfield/Definition
- Andrew Hoehn/Definition
- Andrew McCarthy/Definition
- Andrew Moylan/Definition
- Andrew Natsios/Definition
- Andrew Scheer/Definition
- Andrew Schlafly/Definition
- Androgen insensitivity syndrome/Definition
- Android (robotics)/Definition
- Andromeda-class/Definition
- Aneesah Nadir/Definition
- Angelo Codevilla/Definition
- Angiogenesis/Definition
- Angiogenesis inhibitor/Definition
- Angled deck/Definition
- Angular distortion/Definition
- Animal Liberation/Definition
- Ann Beeson/Definition
- Ann Druyan/Definition
- Ann Fudge/Definition
- Ann-Louise Lohr/Definition
- Anna Freud/Definition
- Anne Cahn/Definition
- Anne Krueger/Definition
- Anneliesia/Definition
- Anniston Army Depot/Definition
- Anonymous (pseudonym)/Definition
- Anonymous peer review/Definition
- Anorexia/Definition
- Anousheh Ansari/Definition
- Ansar Ahmed Burney/Definition
- Ansar al-Sunna/Definition
- Antea/Definition
- Anthony Beilenson/Definition
- Anthony Burshnick/Definition
- Anthony Dworkin/Definition
- Anthony Fauci/Definition
- Anthony Lake/Definition
- Anthony Weiner/Definition
- Anthracyclines/Definition
- Anti-Smith antibodies/Definition
- Anti-nuclear antibody test/Definition
- Anti-tank gun/Definition
- Anti-tank weapon/Definition
- Antimetabolite/Definition
- Antiope/Definition
- Antitank weapon/Definition
- Antitheism/Definition
- Antivenom/Definition
- Anton von Hohberg und Buchwald/Definition
- Antonio Canova/Definition
- Antonio Mascarenhas Monteiro/Definition
- Antony Williams/Definition
- Anus/Definition
- Anush/Definition
- Anwarul Haq Mujahid/Definition
- Aphasia/Definition
- Apnea/Definition
- Apple festival/Definition
- Applied arts/Definition
- Applied cognitive science/Definition
- Applied research/Definition
- Applied science/Definition
- Apraxia/Definition
- Apsyrtos/Definition
- Arash Norouzi/Definition
- Arata Hamao/Definition
- Archbishop of Canterbury/Definition
- Arctic/Definition
- Arctium lappa/Definition
- Arcturus-class/Definition
- Area (geography)/Definition
- Area (neuroanatomy)/Definition
- Area 51/Definition
- Area 52/Definition
- Area 57/Definition
- Area army/Definition
- Area of Outstanding Natural Beauty/Definition
- Area-preserving mapping/Definition
- Areal distortion/Definition
- Argo/Definition
- Argonauts/Definition
- Argyll Robertson pupil/Definition
- Ari Rabin-Havt/Definition
- Ariadne/Definition
- Ariel Cohen/Definition
- Arik Ascherman/Definition
- Arisbe/Definition
- Aristophanes/Definition
- Arjun Gupta/Definition
- Arlington Hall/Definition
- Armagnac (brandy)/Definition
- Armed reconnaissance/Definition
- Armen Sarkissian/Definition
- Armor (materials)/Definition
- Armor (military unit)/Definition
- Armor (naval)/Definition
- Armor (personal protective)/Definition
- Armored vehicle/Definition
- Army Group B/Definition
- Army Materiel Command/Definition
- Army group/Definition
- Armée de l'Air/Definition
- Arnold Kanter/Definition
- Arnold Schwarzenegger/Definition
- Aromatic heterocycles/Definition
- Arrested landing system/Definition
- Arsenal (military)/Definition
- Artemether-lumefantrine/Definition
- Artemis Class/Definition
- Artemis-class/Definition
- Arthur C. Brooks/Definition
- Arthur Currie/Definition
- Arthur Hartman/Definition
- Arthur Hughes/Definition
- Arthur Liebehenschel/Definition
- Arthur Radford/Definition
- Arthur Waldron/Definition
- Arthur Walker, Jr./Definition
- Arthurian legend/Definition
- Article (grammar)/Definition
- Article (law)/Definition
- Article (publishing)/Definition
- Article (sale)/Definition
- Artur Davis/Definition
- Arundel Castle/Definition
- Arvid Harnack/Definition
- Arvo Pärt/Definition
- Asbury College/Definition
- Aschehoug forlag/Definition
- Ashbrook Center/Definition
- Ashdown Forest/Definition
- Ashgabat/Definition
- Ashton Carter/Definition
- Asia-Pacific Economic Cooperation/Definition
- Asifa Quraishi/Definition
- Asim Abdur Rashid/Definition
- Ask price/Definition
- Asma Jahangir/Definition
- Aspartame/Definition
- Asset (accountancy)/Definition
- Asset (banking)/Definition
- Asset (finance)/Definition
- Asset backed security/Definition
- Assistant Secretary of State for African Affairs/Definition
- Assistant Secretary of State for Southern and Central Asian Affairs/Definition
- Association for Computing Machinery/Definition
- Assumption/Definition
- Asymmetric information/Definition
- Asymmetric shock/Definition
- Atlanta-class/Definition
- Atlas (space launch vehicle)/Definition
- Atom (comic)/Definition
- Atom (syndication format)/Definition
- Atomic Reshuffle/Definition
- Atomic absorption spectrometry/Definition
- Atreus/Definition
- Attack vector (computers)/Definition
- Attometre/Definition
- Atul Gawande/Definition
- Audio technology/Definition
- Audiology/Definition
- Auditory cortex/Definition
- Auditory illusion/Definition
- Augean Stables/Definition
- August Frank/Definition
- August Kubizek/Definition
- August Schneidhueber/Definition
- Auguste Kerckhoffs/Definition
- Augustus Norton/Definition
- Auschwitz main concentration camp/Definition
- Austerity (fiscal)/Definition
- Austin-class/Definition
- Australasia/Definition
- Austrian School of economics/Definition
- Author-level metrics/Definition
- Automatic rifle/Definition
- Automatic stabilisers/Definition
- Autotrophy/Definition
- Auxin/Definition
- Availability heuristic/Definition
- Avenger-class/Definition
- Avi Glicksman/Definition
- Avis Bohlen/Definition
- Avram Lyon/Definition
- Avro Lancaster/Definition
- Awareness/Definition
- Axon/Definition
- Azizah al-Hibri/Definition
- Azov 27N/Definition
- Aztreonam/Definition
- Azusa Pacific University/Definition
- B'Tselem/Definition
- B-25/Definition
- B-26 (bomber)/Definition
- B-36/Definition
- B-45/Definition
- B-45 Tornado/Definition
- B-57 Canberra/Definition
- B-Cell lymphoma/Definition
- B43 (nuclear weapon)/Definition
- B53 (nuclear weapon)/Definition
- B5N2 (bomber)/Definition
- BAA Limited/Definition
- BAE Systems Nimrod MRA4/Definition
- BAE Systems Nimrod R1/Definition
- BAT-2 (combat engineering vehicle)/Definition
- BAT-M (combat engineering vehicle)/Definition
- BDNPA-F/Definition
- BDU-45/Definition
- BENT SPEAR/Definition
- BGP confederation/Definition
- BLU-109/Definition
- BLU-110/Definition
- BLU-111/Definition
- BLU-113/Definition
- BLU-116/Definition
- BLU-117/Definition
- BLU-118/Definition
- BLU-119/Definition
- BLU-122/Definition
- BLU-126/Definition
- BLU-91-B (submunition)/Definition
- BNP Paribas/Definition
- BRIC/Definition
- BRICs/Definition
- BTN (explosive)/Definition
- BZ/Definition
- BaE Systems/Definition
- Baba Kura Kaigama/Definition
- Babanusa/Definition
- Babur/Definition
- Baby/Definition
- Bacchae/Definition
- Bacchus/Definition
- Bachelor of Arts/Definition
- Bachelor's degree/Definition
- Bacteriochlorophyll/Definition
- Bad bank/Definition
- Bagley-class/Definition
- Baker-Nunn camera/Definition
- Baking soda/Definition
- Balance of power/Definition
- Balance sheet/Definition
- Balance sheet recession/Definition
- Balanced budget/Definition
- Balassa-Samuelson effect/Definition
- Balkinization/Definition
- Balneology/Definition
- Balochistan Province/Definition
- Baltimore-class/Definition
- Band neutrophil/Definition
- Bang-bang control/Definition
- Banking panic/Definition
- Banning Garrett/Definition
- Baratol/Definition
- Barbara Bodine/Definition
- Barbara Boxer/Definition
- Barbara Comstock/Definition
- Barbara Davis Blum/Definition
- Barbara Epstein/Definition
- Barbara Esbin/Definition
- Barbara Franklin/Definition
- Barbara Lee/Definition
- Barbara Mikulski/Definition
- Barbara P. Zabitz/Definition
- Barbara Shailor/Definition
- Bard/Definition
- Bardyl Tirana/Definition
- Barium nitrate/Definition
- Barksdale Air Force Base/Definition
- Barnett Rubin/Definition
- Barney Frank/Definition
- Baron Marshall of Knightsbridge/Definition
- Baroness Chalker of Wallasey/Definition
- Barrister/Definition
- Barry Blechman/Definition
- Barry Block/Definition
- Barry C. Lynn/Definition
- Barry Farber/Definition
- Barry Rubin/Definition
- Barry W. Lynn/Definition
- Bart Stupak/Definition
- Barytol/Definition
- Bas van Fraassen/Definition
- Basal ganglia/Definition
- Base bleed/Definition
- Base map/Definition
- Basel Committee on Banking Supervision/Definition
- Basel I/Definition
- Basel I & Basel II/Definition
- Basel II/Definition
- Basel III/Definition
- Baseload/Definition
- Basic research/Definition
- Basil Rathbone/Definition
- Basis point/Definition
- Basle Nomina Anatomica/Definition
- Basra/Definition
- Bassam Tibi/Definition
- Bat (mammal)/Definition
- Bath, Somerset/Definition
- Battle of Antietam/Definition
- Battle of Balikpapan/Definition
- Battle of Rennell Island/Definition
- Battle of San Jacinto/Definition
- Battle of the Atlantic/Definition
- Battle rifle/Definition
- Battle-class/Definition
- Battleships Pacific Fleet/Definition
- Bay of Naples/Definition
- Bay of Pigs invasion/Definition
- Bayat/Definition
- Bayeux Tapestry/Definition
- Bear (finance)/Definition
- Beau Boulter/Definition
- Beaver Wars/Definition
- Becca Wilson/Definition
- Bed/Definition
- Beheading/Definition
- Being and Time/Definition
- Belden Bell/Definition
- Belfast Agreement/Definition
- Belinda Stronach/Definition
- Belknap-class/Definition
- Ben Bernanke/Definition
- Ben Chandler/Definition
- Ben Cunningham (visual arts)/Definition
- Ben Geyerhahn/Definition
- Ben Wattenberg/Definition
- Benham-class/Definition
- Benjamin Bull/Definition
- Benjamin Cardin/Definition
- Benjamin Carson/Definition
- Benjamin Civiletti/Definition
- Benjamin Harrison V/Definition
- Benjamin Jealous/Definition
- Benjamin Netanyahu/Definition
- Benjamin Rivlin/Definition
- Benjamin Sisko/Definition
- Benjamin Wittes/Definition
- Benson-Gleaves-class/Definition
- Bergen/Definition
- Beriev A-50/Definition
- Berin Szoka/Definition
- Berkshire/Definition
- Bermuda Principles/Definition
- Bern/Definition
- Bernard Aronson/Definition
- Bernard Avishai/Definition
- Bernard Finel/Definition
- Bernard L. Schwartz/Definition
- Bernard Montgomery/Definition
- Bernard Munk/Definition
- Bernards Andrews Nyamwaya Mudho/Definition
- Bernhard Stempfle/Definition
- Bertolt Brecht/Definition
- Beryllium reflector/Definition
- Beta (finance)/Definition
- Beta particle/Definition
- Betar/Definition
- Beth Courtney/Definition
- Betty McCollum/Definition
- Beveridge curve/Definition
- Beverly LaHaye/Definition
- Bhajan/Definition
- Bibliome/Definition
- Bid price/Definition
- Biko Baker/Definition
- Bilirubin/Definition
- Bill (finance)/Definition
- Bill Cassidy/Definition
- Bill Gertz/Definition
- Bill Johnson/Definition
- Bill Nelson/Definition
- Bill Pease/Definition
- Bill Saunders/Definition
- Bill Shuster/Definition
- Bill of Exchange/Definition
- Binding (chemistry)/Definition
- Bingham McCutchen LLP/Definition
- BioTorrent/Definition
- Bioacoustics/Definition
- Biohazard/Definition
- Biological hierarchy/Definition
- Biological imaging/Definition
- Biological membrane/Definition
- Biological response modifier/Definition
- Biological signalling/Definition
- Biological system/Definition
- Bioluminescence/Definition
- Biomarker/Definition
- Biomass power plant/Definition
- Biomedical engineering/Definition
- Biomedical imaging/Definition
- Biomineralisation/Definition
- Biomusicology/Definition
- Biophysical economics/Definition
- Bioprocess/Definition
- Biosafety/Definition
- Biosphere/Definition
- Bipartisan/Definition
- Bipartisan Congressional Refugee Caucus/Definition
- Bipartisanship (U.S.)/Definition
- Birdsong/Definition
- Birth/Definition
- Bishkek/Definition
- Bismarck, North Dakota/Definition
- Bitcoin/Definition
- Black Front/Definition
- Black Lives Matter/Definition
- Black Reichswehr/Definition
- Black hat/Definition
- Black liberation theology/Definition
- Black propaganda/Definition
- Bladder/Definition
- Blaine Luetkemeyer/Definition
- Blanche Lincoln/Definition
- Blog carnival/Definition
- Blog post/Definition
- Blog roll/Definition
- Blogger (person)/Definition
- Blogware/Definition
- Blondi (dog)/Definition
- Blondie (band)/Definition
- Blood cells/Definition
- Blood vessel/Definition
- Blood-brain barrier/Definition
- Blue/Definition
- Blue Bunny (nuclear weapon)/Definition
- Blue Obelisk/Definition
- Bob Beckel/Definition
- Bob Corker/Definition
- Bob Etheridge/Definition
- Bob Fierro/Definition
- Bob Goodlatte/Definition
- Bob Graham/Definition
- Bob Inglis/Definition
- Bob Kerrey/Definition
- Bob Unruh/Definition
- Bob Walker/Definition
- Bobby Scott/Definition
- Body region/Definition
- Body size/Definition
- Boeing 707/Definition
- Boeing 717/Definition
- Boeing 747/Definition
- Bofors FH77/Definition
- Bond (financial)/Definition
- Bonding (mechanical)/Definition
- Bone/Definition
- Boom (economics)/Definition
- Boric acid/Definition
- Boston Tea Party/Definition
- Boston-class/Definition
- Bothrops/Definition
- Boulder, Colorado/Definition
- Boy/Definition
- Boy Scouts of America v. Dale/Definition
- Brachytherapy/Definition
- Brad Birzer/Definition
- Brad Ellsworth/Definition
- Brad Rothschild/Definition
- Brad Sherman/Definition
- Bradford Berenson/Definition
- Bradley Burston/Definition
- Bradley Smith/Definition
- Brain asymmetry/Definition
- Brain disorder/Definition
- Brain hemisphere/Definition
- Brain map/Definition
- Brain mass/Definition
- Brain segmentation/Definition
- Brain ventricle/Definition
- Brain volume/Definition
- Brandy (spirit)/Definition
- Breast/Definition
- Breast adenocarcinoma/Definition
- Breast ductal carcinoma/Definition
- Brent Scowcroft/Definition
- Brett Guthrie/Definition
- Brett McGurk/Definition
- Bretton Woods/Definition
- Brian Bilbray/Definition
- Brian Campbell/Definition
- Brian Dailey/Definition
- Brian Donegan/Definition
- Brian Herbert/Definition
- Brian Higgins/Definition
- Brian Kennedy/Definition
- Brian Mathis/Definition
- Brian Wilson/Definition
- Bridge (civil engineering)/Definition
- Bridge (computer architecture)/Definition
- Bridge (computer network)/Definition
- Bridge (military engineering)/Definition
- Bridge crane/Definition
- Brighton and Hove/Definition
- Brill-Zinsser disease/Definition
- British Airways/Definition
- British Commandos/Definition
- British Islands/Definition
- Broad gauge/Definition
- Broad money/Definition
- Broker/Definition
- Brooklyn-class/Definition
- Brooks Bayne/Definition
- Brother/Definition
- Bruce Allyn/Definition
- Bruce Braley/Definition
- Bruce Carlson/Definition
- Bruce DeMars/Definition
- Bruce Einhorn/Definition
- Bruce Fein/Definition
- Bruce Hoffman/Definition
- Bruce Hooper/Definition
- Bruce Jackson/Definition
- Bruce Klingner/Definition
- Bruce Lee/Definition
- Bruce Ramer/Definition
- Bruce Sanborn/Definition
- Bruno Kitt/Definition
- Bruno Streckenbach/Definition
- Bryan Chapell/Definition
- Bryan Owens/Definition
- Brüder Grimm/Definition
- Bubble (economics)/Definition
- Buckingham Palace/Definition
- Budget balance/Definition
- Budget deficit/Definition
- Bug report/Definition
- Building society/Definition
- Bulbourethral glands/Definition
- Bull/Definition
- Bull (finance)/Definition
- Bundeswehr/Definition
- Burhanuddin Rabbani/Definition
- Burt Folsom/Definition
- Burt Prelutsky/Definition
- Burwash/Definition
- Busan/Definition
- Business method patent/Definition
- Buyback/Definition
- Buzz Aldrin/Definition
- Byron Calhoun/Definition
- Byron Dorgan/Definition
- C-5 Galaxy/Definition
- C-54/Definition
- C. Boyden Gray/Definition
- C. Fred Bergsten/Definition
- C.A. Ruppersberger/Definition
- C3I/Definition
- CAG (codon)/Definition
- CAG-repeat diseases/Definition
- CAISI/Definition
- CANYON satellite/Definition
- CBU-74 cluster bomb/Definition
- CBU-75 cluster bomb/Definition
- CC0/Definition
- CDS/Definition
- CDS spread/Definition
- CEELI Institute/Definition
- CH-46/Definition
- CH-53/Definition
- CH-53 Sea Stallion/Definition
- CH-53 Super Stallion/Definition
- COBRA (health care)/Definition
- CODAD/Definition
- CODAG/Definition
- CODAG-WARP/Definition
- CODLAG/Definition
- CODOG/Definition
- COGAG/Definition
- COGAS/Definition
- COGES/Definition
- COGOG/Definition
- CONAS/Definition
- CORONA satellite/Definition
- COSAG/Definition
- Cab rank principle/Definition
- Cabbage/Definition
- Cabinet minister (UK)/Definition
- Cadastral systems/Definition
- Cadmium zinc telluride/Definition
- Caesar von Hofacker/Definition
- Cal Thomas/Definition
- Calchas/Definition
- Calciseptine/Definition
- Calculus (medicine)/Definition
- Caleb Strong/Definition
- Calvin Waller/Definition
- Calvin cycle/Definition
- Camber/Definition
- Camber Sands/Definition
- Cambridge Monitor System/Definition
- Cambridgeshire/Definition
- Cameron Neylon/Definition
- Camouflage/Definition
- Camp David Accords (1978)/Definition
- Campbell University/Definition
- Canadian Air Force/Definition
- Canberra (bomber)/Definition
- Candidate (politics)/Definition
- Candle/Definition
- Cannistrano Associates/Definition
- Capital (banking)/Definition
- Capital (book)/Definition
- Capital adequacy ratio/Definition
- Capital expense/Definition
- Captain (land forces)/Definition
- Captain (naval)/Definition
- Captain Crotty (fireboat)/Definition
- Caravan for Democracy/Definition
- Carbine/Definition
- Carbohydrate/Definition
- Cardiac electrophysiological techniques/Definition
- Cardiac electrophysiology/Definition
- Cardiac monitor/Definition
- Cardiopulmonary bypass/Definition
- Cardiotoxicity/Definition
- Cardiovascular system/Definition
- Care work/Definition
- Career Ambassador/Definition
- Career Minister/Definition
- Carfentanil/Definition
- Carl Clauberg/Definition
- Carl Gershman/Definition
- Carl Goedeler/Definition
- Carl Levin/Definition
- Carl Mundy, Jr./Definition
- Carl Ritter/Definition
- Carl Vuono/Definition
- Carl Zuckmayer/Definition
- Carl-Heinrich von Stuelpnagel/Definition
- Carla Hills/Definition
- Carlisle Trost/Definition
- Carlos Marighella/Definition
- Carlos Pascual/Definition
- Carlton Fulford, Jr/Definition
- Carmen MacDougall/Definition
- Carmustine/Definition
- Carol Adelman/Definition
- Carol Taber/Definition
- Carolina Rossini/Definition
- Caroline Barnes/Definition
- Carolyn Amachet/Definition
- Carolyn Bartholomew/Definition
- Carolyn Fiddler/Definition
- Carolyn Maloney/Definition
- Carolyn McCarthy/Definition
- Carolyn O'Hara/Definition
- Carrickfergus/Definition
- Carrie Gordon Earl/Definition
- Carry trading/Definition
- Carter Ham/Definition
- Case Green/Definition
- Cassam Uteem/Definition
- Cast density/Definition
- Catalonia (autonomous community)/Definition
- Catapult (aircraft)/Definition
- Catharin Dalpino/Definition
- Catherine Colgan/Definition
- Cathy McMorris Rodgers/Definition
- Caucasus/Definition
- Cauchy moment/Definition
- Caucus/Definition
- Caucus for Congressional World Bank Dialogue/Definition
- Ceiling (weapons)/Definition
- Cell Biology/Definition
- Cell biology/Definition
- Cell differentiation/Definition
- Cell phone jammer/Definition
- Cell signalling/Definition
- Cell wall/Definition
- Cello/Definition
- Cellular biophysics/Definition
- Centaur/Definition
- Center for American Progress/Definition
- Center for Democracy and Technology/Definition
- Center for Immigration Studies/Definition
- Center for a Just Society/Definition
- Centimetre/Definition
- Central Africa/Definition
- Central African Republic/Definition
- Central America/Definition
- Central Bank/Definition
- Central series/Definition
- Central surface/Definition
- Cerberos/Definition
- Cerebrospinal fluid/Definition
- Certificate of deposit/Definition
- Cerynian Hind/Definition
- Chad Sweet/Definition
- Chadwick Boseman/Definition
- Chadwick Gore/Definition
- Chair (furniture)/Definition
- Chair (person)/Definition
- Chaka Fattah/Definition
- Chancellery of the Fuehrer/Definition
- Chancellery of the Nazi Party/Definition
- Chancellery of the Reich/Definition
- Chandelier cell/Definition
- Change/Definition
- Channel Description Format/Definition
- Chaos/Definition
- Chapman Cox/Definition
- Chapter VII peace operations/Definition
- Charge (electricity)/Definition
- Charlene Barshefsky/Definition
- Charles Boyd/Definition
- Charles Bradley/Definition
- Charles Campbell/Definition
- Charles Curtis (lobbyist)/Definition
- Charles E. Allen/Definition
- Charles Fairbanks, Jr./Definition
- Charles Gonzalez/Definition
- Charles Hill/Definition
- Charles Horner/Definition
- Charles Johnson/Definition
- Charles Kennedy/Definition
- Charles Kesler/Definition
- Charles Koch/Definition
- Charles Kupperman/Definition
- Charles Leadbeater/Definition
- Charles Lutwidge Dodgson/Definition
- Charles Nelson/Definition
- Charles Piroth/Definition
- Charles Rangel/Definition
- Charles Robb/Definition
- Charles Schumer/Definition
- Charles Taylor (philosopher)/Definition
- Charles Taylor (politician)/Definition
- Charles Vest/Definition
- Charles Westoff/Definition
- Charles Willoughby/Definition
- Charles Wilson/Definition
- Charles Yeager/Definition
- Charlie Melancon/Definition
- Charlie Rangel/Definition
- Charlie Savage/Definition
- Charlie Wilson/Definition
- Charlotte Brontë/Definition
- Charmaine Yoest/Definition
- Charter/Definition
- Charter school/Definition
- Chartplotter/Definition
- Chat/Definition
- Chauchat/Definition
- Chauncey Crandell/Definition
- Checks and balances/Definition
- Cheka/Definition
- Chellie Pingree/Definition
- Chelsea Manning/Definition
- Chelsea Schilling/Definition
- Chemical equilibrium/Definition
- Chemical evolution/Definition
- Chemical formula/Definition
- Chemical process/Definition
- Chennai/Definition
- Cherie Booth/Definition
- Cheryl McLeskey/Definition
- Chester Crocker/Definition
- Chi-squared goodness of fit test/Definition
- Chief Government Whip, House of Commons (Canada)/Definition
- Chief Opposition Whip, House of Commons (Canada)/Definition
- Chief of government/Definition
- Chief series/Definition
- Child development/Definition
- Chimera (genetics)/Definition
- Chinese-American cuisine/Definition
- Chinsung Chung/Definition
- Chiropractic education/Definition
- Chlorophyll/Definition
- Chloroquine/Definition
- Chocolate brownie/Definition
- Chord (music)/Definition
- Chordate/Definition
- Chordoma Foundation/Definition
- Choriocarcinoma/Definition
- Chris Donnelly/Definition
- Chris Gacek/Definition
- Chris Lee/Definition
- Chris Roush/Definition
- Chris Sawyer/Definition
- Chris Smith (U.S. politician)/Definition
- Chris Van Hollen/Definition
- Chris Yogerst/Definition
- Christian Brose/Definition
- Christian Medical and Dental Associations/Definition
- Christian Whiton/Definition
- Christian Wirths/Definition
- Christian de Castries/Definition
- Christian theology/Definition
- Christianism/Definition
- Christine Chinkin/Definition
- Christine Todd Whitman/Definition
- Christology/Definition
- Christopher A. Kojm/Definition
- Christopher Adamo/Definition
- Christopher Bond/Definition
- Christopher D. Miller/Definition
- Christopher Farrell/Definition
- Christopher Flannery/Definition
- Christopher Murphy/Definition
- Christopher Twomey/Definition
- Chromosome/Definition
- Chromosome band/Definition
- Chronic inflammatory demyelinating polyradiculoneuropathy/Definition
- Chronic posttraumatic stress disorder/Definition
- Chuck Blahous/Definition
- Chuck Colson/Definition
- Chuck Donovan/Definition
- Chuck Grassley/Definition
- Chuck Schumer/Definition
- Chuichi Nagumo/Definition
- Chyle/Definition
- Cider/Definition
- Cinnamon Stillwell/Definition
- Circular cruising formation/Definition
- Circular flow of income/Definition
- Circumcentre/Definition
- Circumflex accent/Definition
- Citizen science/Definition
- City of Gold Coast/Definition
- City of London/Definition
- Civic engagement/Definition
- Civil Engineering Corps/Definition
- Civil liberties/Definition
- Civil litigation/Definition
- Civil-military relations/Definition
- Civilization/Definition
- Cladobium/Definition
- Claire McCaskill/Definition
- Clara Immerwahr/Definition
- Clarence Darrow/Definition
- Clarice Cliff/Definition
- Clark Clifford/Definition
- Clark Millery/Definition
- Classical unemployment/Definition
- Claude Debussy/Definition
- Claude Monet/Definition
- Claudia Kennedy/Definition
- Claudius Watts III/Definition
- Claus von Stauffenberg/Definition
- Cleanliness/Definition
- Clearing house/Definition
- Cleft country/Definition
- Clemson-class/Definition
- Cleveland-class/Definition
- Cliff Stearns/Definition
- Clifford May/Definition
- Clive Crook/Definition
- Cloaking/Definition
- Clock/Definition
- Clopen set/Definition
- Closed end fund/Definition
- Closed shop/Definition
- Clowder/Definition
- Clytaimestra/Definition
- Clytemnestra/Definition
- Co-investment fund/Definition
- Coagulase/Definition
- Coalition warfare/Definition
- Cobra (snake)/Definition
- Coco/Definition
- Code Pink/Definition
- Coevolution/Definition
- Colby M. May/Definition
- Colchis/Definition
- Cold hardiness/Definition
- Cold temperature interrogation techniques/Definition
- Collaboration/Definition
- Collaborative public markup/Definition
- Collateral (finance)/Definition
- Collateral damage/Definition
- Collateralised debt obligation/Definition
- Collective intelligence/Definition
- Collective security/Definition
- Collin Peterson/Definition
- Color Doppler ultrasonography/Definition
- Colorado Springs, Colorado/Definition
- Colson Center for Christian Worldview/Definition
- Colubridae/Definition
- Combat Studies Institute/Definition
- Combating Terrorism Center/Definition
- Combined Maritime Forces/Definition
- Comedy/Definition
- Comitato interministeriale per la sicurezza della Repubblica/Definition
- Command economy/Definition
- Commander (naval)/Definition
- Commander-in-Chief, Combined Fleet/Definition
- Commercial bank/Definition
- Commercial paper/Definition
- Common Tri-Mode Seeker/Definition
- Communitarianism/Definition
- Community foundation/Definition
- Community health aide/Definition
- Company foundation/Definition
- Comparative biology/Definition
- Comparative morphometry/Definition
- Comparative physiology/Definition
- Complex interactive system/Definition
- Composition A/Definition
- Composition B/Definition
- Composition C/Definition
- Composition C-4/Definition
- Composition series/Definition
- Compression ratio/Definition
- Computational biology/Definition
- Computational linguistics/Definition
- Computational morphology/Definition
- Computational morphometry/Definition
- Computational neuroscience/Definition
- Computer graphics/Definition
- Computer-assisted radiotherapy planning/Definition
- Computers, Freedom and Privacy/Definition
- ConTeXt (software)/Definition
- Concentration camp political section/Definition
- Concentration ratio/Definition
- Condensation (literature)/Definition
- Condenser (heat transfer)/Definition
- Conductor (materials)/Definition
- Conference/Definition
- Conference peer review/Definition
- Conformal mapping/Definition
- Conformal radiotherapy/Definition
- Conformity/Definition
- Congressional Algerian Caucus/Definition
- Congressional International Anti-Piracy Caucus/Definition
- Congressional Prayer Caucus/Definition
- Congressional Sudan Caucus/Definition
- Congressional Tri-Caucus/Definition
- Congressional Ukrainian Caucus/Definition
- Connected replenishment/Definition
- Connection admission control/Definition
- Connective tissue/Definition
- Connectome/Definition
- Connie Mack/Definition
- Connie Mackey/Definition
- Conor Clarke/Definition
- Consequentialism/Definition
- Conservation biology/Definition
- Conservative Opportunity Society/Definition
- Conservative Party (New York State)/Definition
- Conservative Party of Canada/Definition
- Constantinople/Definition
- Constitution of Ireland/Definition
- Consumer surplus/Definition
- Consumer's surplus/Definition
- Consumption function/Definition
- Contagion (banking)/Definition
- Contagion (finance)/Definition
- Context (concept)/Definition
- Contingent convertible bond/Definition
- Contingent employment/Definition
- Contingent valuation/Definition
- Contracyclical regulation/Definition
- Conventional weapons/Definition
- Convergence (economics)/Definition
- Convoy/Definition
- Cooperative/Definition
- Corcoran College of Art and Design/Definition
- Core state/Definition
- Core state conflicts/Definition
- Coreper/Definition
- Corey Hinderstein/Definition
- Corinne Graff/Definition
- Cornell University/Definition
- Corpus callosum/Definition
- Corrine Brown/Definition
- Cortical surface/Definition
- Cortical surface area/Definition
- Corvette/Definition
- Cosmonaut/Definition
- Cosmopolitanism/Definition
- Cost of capital/Definition
- Costaricaea/Definition
- Council Nedd/Definition
- Council for Citizens against Government Waste/Definition
- Counselor of the U.S. Department of State/Definition
- Countercyclical/Definition
- County Antrim/Definition
- County Armagh/Definition
- County Cavan/Definition
- County Donegal/Definition
- County Down/Definition
- County Durham/Definition
- County Fermanagh/Definition
- County Londonderry/Definition
- County Tyrone/Definition
- County-class/Definition
- Coup/Definition
- Covered bond/Definition
- Covered interest rate differential/Definition
- Cow/Definition
- Craig Kennedy/Definition
- Craig Newmark/Definition
- Crane (mechanical)/Definition
- Crater (Aden)/Definition
- Creative Commons licenses/Definition
- Creative destruction/Definition
- Creativity/Definition
- Credentialing (information security)/Definition
- Credit (finance)/Definition
- Credit crunch/Definition
- Credit default swap/Definition
- Credit easing/Definition
- Credit risk/Definition
- Creme brulee/Definition
- Cretan Bull/Definition
- Crimes against peace/Definition
- Cronos/Definition
- Cross elasticity of demand/Definition
- Crotalinae/Definition
- Crowborough/Definition
- Crowding out/Definition
- Cryobank/Definition
- Cryosection/Definition
- Cryptobiosis/Definition
- Cuban cuisine/Definition
- Cuban sandwich/Definition
- Cultural anthropology/Definition
- Cumbria/Definition
- Currency board/Definition
- Currency mismatch/Definition
- Curtin Winsor/Definition
- Cyanippus/Definition
- Cybele/Definition
- Cyclical deficit/Definition
- Cyclically-adjusted budget deficit/Definition
- Cyclotol/Definition
- Cydoniorchis/Definition
- Cytoarchitecture/Definition
- Cytoplasm/Definition
- Cytosol/Definition
- D. Stephen Mathias/Definition
- DATB/Definition
- DBANABASIS/Definition
- DBpedia/Definition
- DDNP/Definition
- DEVGRU/Definition
- DINA (Chile)/Definition
- DINA (Denmark)/Definition
- DINA (propellant)/Definition
- DKosopedia/Definition
- DLA Piper/Definition
- DMDNB/Definition
- DNA replication/Definition
- DNA sequencing/Definition
- DNPA/Definition
- DSU-33/Definition
- DUKW/Definition
- DULL SWORD/Definition
- Dactylic hexameter/Definition
- Dadullah Akhund/Definition
- Dagwood sandwich/Definition
- Daidalos/Definition
- Dakota Wood/Definition
- Dale Bumpers/Definition
- Dale Lang/Definition
- Dalian/Definition
- Dallaire Centre of Excellence for Peace and Security/Definition
- Dan Boren/Definition
- Dan Burton/Definition
- Dan Eichenbaum/Definition
- Dan Fleshler/Definition
- Dan Halutz/Definition
- Dan Maffei/Definition
- Dana Pittard/Definition
- Dana Rohrabacher/Definition
- Dancesport/Definition
- Dani Rodrik/Definition
- Daniel Akaka/Definition
- Daniel Balint-Kurti/Definition
- Daniel Blumenthal/Definition
- Daniel Carroll/Definition
- Daniel Christman/Definition
- Daniel Cruise/Definition
- Daniel Drezner/Definition
- Daniel Gilman/Definition
- Daniel H. Johnson, Jr./Definition
- Daniel Inouye/Definition
- Daniel J. Mitchell/Definition
- Daniel Kurtzer/Definition
- Daniel Palm/Definition
- Daniel Serwer/Definition
- Daniel Slane/Definition
- Daniel Sullivan/Definition
- Daniel of St. Thomas Jenifer/Definition
- Danny Alexander/Definition
- Danny Davis/Definition
- Danny Yatom/Definition
- Daoism/Definition
- Daphne/Definition
- Darfur Conflict/Definition
- Darien (Connecticut)/Definition
- Darien (Manchuria)/Definition
- Dark pool/Definition
- Darrell Issa/Definition
- Dartmouth College/Definition
- Darwinian transition/Definition
- Dasht-i-leili/Definition
- Data Link Communications Sonobuoy/Definition
- Data sharing/Definition
- Daughter/Definition
- Dave Butz/Definition
- Dave Camp/Definition
- Dave Dickinson/Definition
- Dave Loebsack/Definition
- Dave McCurdy/Definition
- David Abshire/Definition
- David Acheson/Definition
- David All/Definition
- David Avital/Definition
- David Baltimore/Definition
- David Boren/Definition
- David Brearly/Definition
- David Caron/Definition
- David Chu/Definition
- David Cole/Definition
- David Cote/Definition
- David Deptula/Definition
- David Dinkins/Definition
- David Duffié/Definition
- David Eisenhower/Definition
- David Fromkin/Definition
- David Gergen/Definition
- David Heymann/Definition
- David Horovitz/Definition
- David Jeremiah/Definition
- David John/Definition
- David Kay/Definition
- David Keene/Definition
- David Kimche/Definition
- David Koch/Definition
- David Landes/Definition
- David Lane/Definition
- David Lapan/Definition
- David Lawrence, Jr./Definition
- David Limbaugh/Definition
- David Mack/Definition
- David McIntyre/Definition
- David Melilli/Definition
- David Morey/Definition
- David Mott/Definition
- David Newsom/Definition
- David Newton/Definition
- David Obey/Definition
- David Politzer/Definition
- David Prentice/Definition
- David Richards/Definition
- David Richardson/Definition
- David Rivkin/Definition
- David Rothkopf/Definition
- David Rubenstein/Definition
- David Rusin/Definition
- David S. Landes/Definition
- David Sanger/Definition
- David Schenker/Definition
- David Scott/Definition
- David Skaggs/Definition
- David Swindle/Definition
- David Tolbert/Definition
- David Vitter/Definition
- David Wilkie/Definition
- David Wu/Definition
- De Havilland Mosquito/Definition
- DeAnne Julius/Definition
- Debbie Dooley/Definition
- Debbie Halvorson/Definition
- Debbie Stabenow/Definition
- Debbie Wasserman-Schultz/Definition
- Debenture/Definition
- Deborah N. Pearlstein/Definition
- Debra Burlingame/Definition
- Debra Liang-Fenton/Definition
- Debt aversion/Definition
- Debt instrument/Definition
- Debt intolerance/Definition
- Debt trap/Definition
- Decimetre/Definition
- Declaration of Paris (1856)/Definition
- Deduction/Definition
- Default (finance)/Definition
- Default mode network of the brain/Definition
- Defence Signals Directorate/Definition
- Defense Signals Directorate/Definition
- Defense of Democracies/Definition
- Defensive counter-air/Definition
- Defiance/Definition
- Definition (general)/Definition
- Deflagration/Definition
- Deformation-based morphometry/Definition
- Deianeira/Definition
- Deidentification/Definition
- Deiphobus/Definition
- Del Tackett/Definition
- Delayed posttraumatic stress disorder/Definition
- Deleveraging/Definition
- Delhi/Definition
- Deliberative democracy/Definition
- Deloitte/Definition
- Demand shock/Definition
- Demarcation problem/Definition
- Demeter/Definition
- Demophon/Definition
- Demophoon/Definition
- Dendrotoxins/Definition
- Denis MacEoin/Definition
- Dennis Archer/Definition
- Dennis Avery/Definition
- Dennis Crowley/Definition
- Dennis Shea/Definition
- Denny Hamlin/Definition
- Deontology/Definition
- Department of the Army/Definition
- Deposit (banking)/Definition
- Deposit insurance/Definition
- Depreciation (accounting)/Definition
- Deputy Secretary of Defense/Definition
- Deputy Supreme Allied Commander Europe/Definition
- Derivative (finance)/Definition
- Desert/Definition
- Designer drug/Definition
- Desired ground zero/Definition
- Desmond Travers/Definition
- Destocking/Definition
- Destroyer leader/Definition
- Detonating cord/Definition
- Detonation/Definition
- Detonation velocity/Definition
- Detroit Arsenal/Definition
- Deucalion/Definition
- Deutsche Erd- und Steinwerke GmbH/Definition
- Devaluation/Definition
- Developmental biology/Definition
- Developmental biomechanics/Definition
- Devin Nunes/Definition
- Devon Gaffney Cross/Definition
- Dheerujlall Seetulsingh/Definition
- Dhimmitude/Definition
- Diana Aviv/Definition
- Diana DeGette/Definition
- Diana Furchtgott-Roth/Definition
- Diane Passno/Definition
- Diane Watson/Definition
- Dianne Feinstein/Definition
- Dichloroethyl sulfide/Definition
- Dichromacy/Definition
- Dick Durbin/Definition
- Dick White/Definition
- Dicrypta/Definition
- Diesel oil/Definition
- Diet (nutrition)/Definition
- Diet of Worms/Definition
- Dietary Manipulation interrogation techniques/Definition
- Dietrich Bonhoeffer/Definition
- Digestive system/Definition
- Digital Equipment Corporation/Definition
- Digitalis purpurea/Definition
- Digoxin/Definition
- Dilated cardiomyopathy/Definition
- Dilemma/Definition
- Diminishing marginal utility/Definition
- Diomedes/Definition
- Dionysos/Definition
- Dipartimento delle Informazioni per la Sicurezza/Definition
- Direct evidence/Definition
- Direct interrogation techniques/Definition
- Direct investment/Definition
- Directory of Open Access Journals/Definition
- Discipline (academic)/Definition
- Discount window/Definition
- Discounting/Definition
- Discouraged worker/Definition
- Disney+/Definition
- Dispensational premillennism/Definition
- Disposable income/Definition
- Dissociative disorder/Definition
- Distress sale/Definition
- Distressed exchange/Definition
- Ditching dynamite/Definition
- Divalent metal transporter 1/Definition
- Dividend (finance)/Definition
- Dobutamine/Definition
- Doc Hastings/Definition
- Doctor of Philosophy/Definition
- Documentaries/Definition
- Documentary evidence/Definition
- Dodgeball (Google)/Definition
- Dodgeball (game)/Definition
- Dollarization/Definition
- Dolores Beilenson/Definition
- Dolphin-class/Definition
- Don Adams/Definition
- Don Edwards/Definition
- Don Wallace, Jr./Definition
- Don Warren/Definition
- Don Young/Definition
- Donald Boudreaux/Definition
- Donald Devine/Definition
- Donald Easum/Definition
- Donald Kagan/Definition
- Donald Kutyna/Definition
- Donald L. Luskin/Definition
- Donald Manzullo/Definition
- Donald McHenry/Definition
- Donald Payne/Definition
- Donald Wildmon/Definition
- Dongle/Definition
- Donna Christensen/Definition
- Donna Edwards/Definition
- Doris Dungey/Definition
- Doris Matsui/Definition
- Dorset/Definition
- Dose fractionation/Definition
- Double-base propellant/Definition
- Double-blind peer review/Definition
- Double-dip recession/Definition
- Doug Bandow/Definition
- Doug Lamborn/Definition
- Douglas Allison/Definition
- Dov Alfon/Definition
- Downturn (economic)/Definition
- Dr. Seuss/Definition
- Dragon Dictate/Definition
- Dragon boat/Definition
- Dragon's Jaw Bridge/Definition
- Dreadnought/Definition
- Drink/Definition
- Drop zone/Definition
- Dual-purpose gun/Definition
- Duane Parde/Definition
- Duck (bird)/Definition
- Duck Soup (movie)/Definition
- Ductal carcinoma/Definition
- Duino Elegies/Definition
- Duluth, Minnesota/Definition
- Duma/Definition
- Duncan Black/Definition
- Duncan Hunter/Definition
- Durandal (sword)/Definition
- Durham (city)/Definition
- Dyess Air Force Base/Definition
- Dynamite/Definition
- Dysfunctional/Definition
- EGBU-15/Definition
- EH-60C/Definition
- EL-L-8222/Definition
- EL-M-2160/Definition
- EMPTY QUIVER/Definition
- EP-3 ARIES II/Definition
- EP-3 Aries II/Definition
- ES-3 Shadow/Definition
- Eagle Forum/Definition
- Earl Blumenauer/Definition
- Earl Haig/Definition
- Earl Hailston/Definition
- Earl Silbert/Definition
- Earl's Court (Underground station)/Definition
- Earmark/Definition
- East Asia/Definition
- East Germanic languages/Definition
- East Riding of Yorkshire/Definition
- East Sussex/Definition
- Eat/Definition
- Eberhard Finckh/Definition
- Ecclesiology/Definition
- Echidna/Definition
- Echion/Definition
- Econometrics/Definition
- Economic Community for the Great Lake Countries/Definition
- Economic cycle/Definition
- Economic equilibrium/Definition
- Economic intelligence/Definition
- Economic model/Definition
- Economic rent/Definition
- Economic sanctions/Definition
- Economic system/Definition
- Economies of scale/Definition
- Ed Driscoll/Definition
- Ed Lasky/Definition
- Ed Markey/Definition
- Ed Pastor/Definition
- Ed Royce/Definition
- Ed Towns/Definition
- Eddie Johnson/Definition
- Edgar Buckley/Definition
- Edgar James/Definition
- Edgar Julius Jung/Definition
- Edmund Giambastini/Definition
- Edmund Haislmaier/Definition
- Edmund Konig/Definition
- Edmund Veesenmayer/Definition
- Edolphus Towns/Definition
- Eduard Wirths/Definition
- Edupunk/Definition
- Edvard Grieg/Definition
- Edward Christie, Jr./Definition
- Edward Durell Stone/Definition
- Edward Elgar/Definition
- Edward Erler/Definition
- Edward Jayne, II/Definition
- Edward Kaufman/Definition
- Edward Luttwak/Definition
- Edward Meyer/Definition
- Edward Olsen/Definition
- Edward Rowny/Definition
- Edward Royce/Definition
- Edward Scott, Jr./Definition
- Edward Taber/Definition
- Edward Tyson/Definition
- Edward Walker/Definition
- Edward White/Definition
- Edwin Corr/Definition
- Edwin Dorn/Definition
- Edwin Feulner/Definition
- Edwin Williamson/Definition
- Edwina Currie/Definition
- Effective exchange rate/Definition
- Efficient market/Definition
- Efficient market hypothesis/Definition
- Efraim Inbar/Definition
- Efraim Karsh/Definition
- Ego (psychoanalysis)/Definition
- Ehud Barak/Definition
- Eighth Amendment to the United States Constitution/Definition
- Einat Ramon/Definition
- Einat Wilf/Definition
- Einsatzgruppe A/Definition
- El Fasher/Definition
- Elaine Chao/Definition
- Elapinae/Definition
- Elbridge Gerry/Definition
- Eleanor Brown/Definition
- Eleanor Holmes Norton/Definition
- Electra/Definition
- Electromagnetic pulse MASINT/Definition
- Electron transport chain/Definition
- Electronic Discovery Reference Model/Definition
- Electrophysiology/Definition
- Elie Wiesel/Definition
- Elihu Rose/Definition
- Elijah Cummings/Definition
- Eliot Cohen/Definition
- Elisabeth Rehn/Definition
- Elisra SPS-1000/Definition
- Eliyahu Kanovsky/Definition
- Eliyahu Yishai/Definition
- Elizabeth Alexander/Definition
- Elizabeth Andersen/Definition
- Elizabeth Farah/Definition
- Elizabeth Ferris/Definition
- Elizabeth Sherwood-Randall/Definition
- Elizabeth Whelan/Definition
- Ellen Bork/Definition
- Ellen Laipson/Definition
- Elliot Cohen/Definition
- Elliot Gerson/Definition
- Elliott Abrams/Definition
- Ellsworth Air Force Base/Definition
- Elmer Gantry/Definition
- Eloise Anderson/Definition
- Elton Gallegly/Definition
- Emanuel Cleaver/Definition
- Emanuel Schaefer/Definition
- Embankment (Underground station)/Definition
- Embryogenesis/Definition
- Emergency medical technician/Definition
- Emil Haussman/Definition
- Emil Huschke/Definition
- Emil Wiehl/Definition
- Emile El-Hokayem/Definition
- Emily Brontë/Definition
- Emily Dickinson/Definition
- Emmanuel Decaux/Definition
- Employment (economics)/Definition
- Employment policy/Definition
- Empty set/Definition
- Enamine/Definition
- Endemic flea-borne typhus/Definition
- Endogenous (economics)/Definition
- Endoskeleton/Definition
- Endothelium-Dependent Relaxing Factors/Definition
- English Channel/Definition
- Enhanced capital note/Definition
- Enhanced nuclear detonation safety/Definition
- Eni Faleomavaega/Definition
- Enrique V. Iglesias/Definition
- Enterocyte/Definition
- Environmental Sensing Device (military)/Definition
- Environmental biophysics/Definition
- Environmental economics/Definition
- Environmental science/Definition
- Enzyme kinetics/Definition
- Epeius/Definition
- Ephraim Sneh/Definition
- Epicardial mapping/Definition
- Epidemic/Definition
- Epidemic typhus/Definition
- Epimetheus/Definition
- Epistemic injustice/Definition
- Epitope/Definition
- Epitope, T-lymphocyte/Definition
- Equity (finance)/Definition
- Eran Schafferman/Definition
- Erebos/Definition
- Eric Alterman/Definition
- Eric Boehlert/Definition
- Eric Burns/Definition
- Eric Cantor (politician)/Definition
- Eric E. Schmidt/Definition
- Eric Hananoki/Definition
- Eric Massa/Definition
- Erich Albrecht/Definition
- Erich Fellgiebel/Definition
- Erich Klausener/Definition
- Erich Naumann/Definition
- Erich Raeder/Definition
- Erik Paulsen/Definition
- Ernest Hemingway/Definition
- Ernest Istook/Definition
- Ernest J. King/Definition
- Ernest J. Wilson III/Definition
- Ernst B./Definition
- Ernst Biberstein/Definition
- Ernst Damzog/Definition
- Ernst Grawitz/Definition
- Ernst Haeckel/Definition
- Ernst-Otto Remer/Definition
- Eros/Definition
- Ersatzheer/Definition
- Erskine Bowles/Definition
- Erwin Chemerinsky/Definition
- Erwin Ding-Schuler/Definition
- Erwin Schulz/Definition
- Erwin Tschentscher/Definition
- Erwin von Halmerson/Definition
- Erwin von Witzleben/Definition
- Erymanthian Boar/Definition
- Erythroblast/Definition
- Esquire (magazine)/Definition
- Essex/Definition
- Essex-class/Definition
- Essex-class (WWII)/Definition
- Esther Dean/Definition
- Esther Dyson/Definition
- Eternal/Definition
- Etherpad/Definition
- Etherpad clone/Definition
- Ethiopia/Definition
- Ethnomusicology/Definition
- Ethology/Definition
- Ethylene glycol dinitrate/Definition
- Eti Livni/Definition
- Etienne de Durand/Definition
- Etiquette/Definition
- Eugen Gerstenmaier/Definition
- Eugen Roth/Definition
- Eugen Steimle/Definition
- Eugene B. Rumer/Definition
- Eugene Covert/Definition
- Eugene Habiger/Definition
- Eugene O'Curry/Definition
- Eugene Rogers/Definition
- Euhemerus/Definition
- Euler characteristic/Definition
- Eumelus/Definition
- Eumenides/Definition
- Euothonaea/Definition
- Euripides/Definition
- Eurobond/Definition
- Eurocurrency/Definition
- Eurogroup/Definition
- European Central Bank/Definition
- European Commission/Definition
- European Economic Area/Definition
- European Financial Stability Mechanism/Definition
- European Free Trade Association/Definition
- European Monetary Union/Definition
- European Physical Society/Definition
- Eurydamas/Definition
- Eurydice/Definition
- Eurymachus/Definition
- Eurypylus/Definition
- Eurystheus/Definition
- Euskadi Ta Askatasuna/Definition
- Eva Hart/Definition
- Evangelical theology/Definition
- Evolutionary stable strategy/Definition
- Examined Life/Definition
- Excessive deficit procedure/Definition
- Exchange rate depreciation/Definition
- Exchange rate protectionism/Definition
- Exchange rate risk/Definition
- Exchange value/Definition
- Excitation detector/Definition
- Exclusive Economic Zone/Definition
- Executive Order 9066/Definition
- Exogenous/Definition
- Exogenous (economics)/Definition
- Exoskeleton/Definition
- Expectations-augmemted Phillips curve/Definition
- Expectations-augmented Phillips curve/Definition
- Expected utility/Definition
- Expected utility theory/Definition
- Expected value/Definition
- Expeditionary Strike Group TWO/Definition
- Experiment/Definition
- Experimental biophysics/Definition
- Expert/Definition
- Expertise/Definition
- Explosive D/Definition
- Explosive power/Definition
- Extant/Definition
- External economy/Definition
- Externality/Definition
- Extrajudicial detention, U.S., Franklin D. Roosevelt Administration/Definition
- Extramammary Paget's Disease/Definition
- Extraordinary rendition, Israel/Definition
- Extremophile/Definition
- Ezra Weinberg/Definition
- F. E. Bachhuber, Jr./Definition
- F. W. de Klerk/Definition
- F4F Wildcat/Definition
- F4F Wildcat (fighter)/Definition
- F8U Crusader/Definition
- FADED GIANT/Definition
- FAPSI/Definition
- FEFO/Definition
- FMU-139/Definition
- FMU-143/Definition
- FMU-157/Definition
- FMU-162/Definition
- FOXP2/Definition
- FPQ-16/Definition
- FPS-49/Definition
- FPS-85/Definition
- FZU-32/Definition
- Fabian von Schlabrendorff/Definition
- Fabienne Hara/Definition
- Fact/Definition
- Fair value/Definition
- Fairness and Accuracy in Media/Definition
- Fairy tale/Definition
- Faisal Abdul Rauf/Definition
- Faith Whittlesey/Definition
- Falafel/Definition
- Fallacy of composition (economics)/Definition
- False flag interrogation techniques/Definition
- Family foundation/Definition
- Fannie Mae/Definition
- Faqir Muhammed/Definition
- Far enemy/Definition
- Fareed Zakaria/Definition
- Fargo, North Dakota/Definition
- Fargo-class/Definition
- Farid Senzai/Definition
- Farragut-class/Definition
- Fast Carriers Pacific Fleet/Definition
- Fast Ethernet/Definition
- Fast carrier operations/Definition
- Fastening technique/Definition
- Fat/Definition
- Father/Definition
- Fatwa/Definition
- Feces/Definition
- Federal Deposit Insurance Corporation/Definition
- Federal Reserve Board/Definition
- Federal funds rate/Definition
- Federated States of Micronesia/Definition
- Federated database/Definition
- Fedwa Malti-Douglas/Definition
- Felix Benzler/Definition
- Felix Chang/Definition
- Felix Livingston/Definition
- Female/Definition
- Feminist theology/Definition
- Femtocell/Definition
- Femtometre/Definition
- Fentanyl/Definition
- Ferdinand von Bredow/Definition
- Ferghana Valley/Definition
- Fermenter/Definition
- Fiat money/Definition
- Fiber tracking/Definition
- Fidel Ramos/Definition
- Fiduciary duty/Definition
- Field artillery/Definition
- Fields medal/Definition
- Fifth Amendment to the United States Constitution/Definition
- Final Solution/Definition
- Financial Intermediary/Definition
- Financial asset/Definition
- Financial regulator/Definition
- Fiqh/Definition
- Fire Eagle/Definition
- Fire-resistant pit/Definition
- Firefighter/Definition
- First Chief Directorate/Definition
- First Intifada/Definition
- First United States Army/Definition
- Fiscal adjustment/Definition
- Fiscal balance/Definition
- Fiscal consolidation/Definition
- Fiscal contraction/Definition
- Fiscal drag/Definition
- Fiscal expansion/Definition
- Fiscal gap/Definition
- Fiscal instability/Definition
- Fiscal rule/Definition
- Fiscal space/Definition
- Fiscal stability/Definition
- Fiscal stimulus/Definition
- Fiscal sustainability/Definition
- Fiscal transfer/Definition
- Flame photometry/Definition
- Flat mapping/Definition
- Fleet Air Arm/Definition
- Flesh/Definition
- Fletcher-class/Definition
- Flexible prices/Definition
- Flight deck/Definition
- Flower-class/Definition
- Fluidized bed combustion power plant/Definition
- Flywheel/Definition
- Focus group/Definition
- Fog/Definition
- Folic acid antagonist/Definition
- Folklore/Definition
- Foo lemma/Definition
- Foot (anatomy)/Definition
- Foot (prosody)/Definition
- Force Reconnaissance/Definition
- Forced grooming interrogation techniques/Definition
- Forces Command/Definition
- Ford Fraker/Definition
- Ford Motor Company Fund/Definition
- Foregut/Definition
- Foreign Affairs (magazine)/Definition
- Foreign language/Definition
- Foreskin/Definition
- Forest (graph theory)/Definition
- Forrestal-class/Definition
- Fort Benning/Definition
- Fort Drum/Definition
- Fort Gillem/Definition
- Fort Hood/Definition
- Fort Huachucha/Definition
- Fort McPherson/Definition
- Fort Polk/Definition
- Forward contract/Definition
- Forward market/Definition
- Fossil fuel power plant/Definition
- Fouad Khatib/Definition
- Foundation for Moral Law/Definition
- Fourier analysis/Definition
- Foursquare/Definition
- Fourth Amendment to the United States Constitution/Definition
- Fox Broadcasting Company/Definition
- Fractional reserve banking/Definition
- Fractionated radiotherapy/Definition
- Fractiunguis/Definition
- Frame of reference (information science)/Definition
- Frame of reference (social science)/Definition
- Fran Burwell/Definition
- Francis J. Manion/Definition
- Frank G. Wisner/Definition
- Frank Gaffney, Jr./Definition
- Frank LoBiondo/Definition
- Frank Lucas/Definition
- Frank Morris/Definition
- Frank Pace/Definition
- Frank Pallone/Definition
- Frank Ruddy/Definition
- Frank Wisner II/Definition
- Frank Wolf/Definition
- Frankenstein's monster/Definition
- Frankfurt Group/Definition
- Franklin Fisher/Definition
- Franz Eirenschmalz/Definition
- Franz Hössler/Definition
- Franz Johann Hofmann/Definition
- Franz Schubert/Definition
- Franz Walter Stahlecker/Definition
- François Hollande/Definition
- François Rabelais/Definition
- François de Roubaix/Definition
- Fred Brooks/Definition
- Fred Fielding/Definition
- Fred Franks/Definition
- Freddie Mac/Definition
- Frederick Kempe/Definition
- Frederick Kroesen/Definition
- Free enterprise/Definition
- Free space (computers)/Definition
- Free space (hydraulics)/Definition
- Free trade/Definition
- Free-rider/Definition
- FreeSurfer/Definition
- Freedom (software)/Definition
- Freedom-class/Definition
- Freikorps/Definition
- Frente Amplio/Definition
- Freshman member/Definition
- Frictional unemployment/Definition
- Friedrich Entress/Definition
- Friedrich Fromm/Definition
- Friedrich Kruger/Definition
- Friedrich Olbricht/Definition
- Friend Of A Friend/Definition
- FriendFeed/Definition
- Friendfeed/Definition
- Fritz Fischer/Definition
- Fritz Gebhard von Hahn/Definition
- Fritz Gerlich/Definition
- Fritz Klein/Definition
- Fritz-Dietlof Graf von der Schulenburg/Definition
- From the Earth to the Moon/Definition
- Front running/Definition
- Frying/Definition
- Full employment/Definition
- Full employment deficit/Definition
- Functional transcranial Doppler sonography/Definition
- Fund (finance)/Definition
- Funding/Definition
- Funding body/Definition
- Furies/Definition
- Futility interrogation techniques/Definition
- Futures contract/Definition
- G. Conoly Phillips/Definition
- G.K. Butterfield/Definition
- G5 howitzer/Definition
- G7 countries/Definition
- GAU-8/Definition
- GBU-10/Definition
- GBU-12/Definition
- GBU-16/Definition
- GBU-24/Definition
- GBU-28/Definition
- GBU-31/Definition
- GBU-32/Definition
- GBU-38/Definition
- GBU-54/Definition
- GBU-8/Definition
- GPU (Soviet)/Definition
- GRAB satellite/Definition
- GRC-193/Definition
- Gag order/Definition
- Gaia/Definition
- Gaia hypothesis/Definition
- Gaijin/Definition
- Gal-class/Definition
- Gallaudet University/Definition
- Gamma spectrometry/Definition
- Ganglion/Definition
- Gannet (bird)/Definition
- Gantry crane/Definition
- Gardasil/Definition
- Gary Aminoff/Definition
- Gary Becker/Definition
- Gary Gambill/Definition
- Gary Hart/Definition
- Gary Johnson/Definition
- Gary Kenzer/Definition
- Gary Miller/Definition
- Gary Samore/Definition
- Gary Schmitt/Definition
- Gary Wolfram/Definition
- Gastrointestinal tract/Definition
- Gatwick Airport/Definition
- Gatwick Express/Definition
- Gauleiter of Berlin/Definition
- Gauleiter of Franconia/Definition
- Gauleiter of the Auslands-Organisation der NSDAP/Definition
- Gay theology/Definition
- Gearing/Definition
- Gearing-class/Definition
- Gedankenexperiment/Definition
- Geiger counter/Definition
- Geiger-Mueller tube/Definition
- Gene Taylor/Definition
- General Tom Thumb/Definition
- General equilibrium/Definition
- General relativity/Definition
- General support/Definition
- Generativity/Definition
- Genesis (console)/Definition
- Genetic drift/Definition
- Genetic recombination/Definition
- Genome/Definition
- Genomics/Definition
- Genus (topology)/Definition
- Geoffrey Kemp/Definition
- Geoffrey Lawrence/Definition
- Geoffrey Miller/Definition
- Georg August Weltz/Definition
- Georg Loerner/Definition
- Georg von Detten/Definition
- George Carey/Definition
- George Clymer/Definition
- George Grivas/Definition
- George Joulwan/Definition
- George Kenney/Definition
- George LeMieux/Definition
- George Lehner/Definition
- George Lucas/Definition
- George Moose/Definition
- George Orwell/Definition
- George Radanovich/Definition
- George Rathjens/Definition
- George Read/Definition
- George Shultz/Definition
- George Washington-class/Definition
- Georges Garvarentz/Definition
- Georges Perec/Definition
- Georgetown University/Definition
- Geospatial resolution/Definition
- Geothermal power/Definition
- Geothermal power plant/Definition
- Gerald Astor/Definition
- Gerald Baliles/Definition
- Gerald Levy/Definition
- Gerald R. Ford-class/Definition
- Gerard Prunier/Definition
- Gerd Voss/Definition
- Gerhard Rossbach/Definition
- Gerhardt Rose/Definition
- Germinoma/Definition
- Gershon Baskin/Definition
- Geryon/Definition
- Gestation period/Definition
- Ghazni Province/Definition
- Ghor Province/Definition
- Ghost town/Definition
- Gigabit Ethernet/Definition
- Gigi Kwik Gronvall/Definition
- Gilbert Clayton/Definition
- Gilbert Islands/Definition
- Gilgamesh/Definition
- Gimme Gimme Gimme/Definition
- Gini coefficient/Definition
- Gini index/Definition
- Gisella Perl/Definition
- GitHub/Definition
- Giuseppe Ammendola/Definition
- Glass brain/Definition
- Gleiwitz radio station attack/Definition
- Glen Holden/Definition
- Glenda Caldwell/Definition
- Glenn Reynolds/Definition
- Glenn Thompson/Definition
- Glenn Williams/Definition
- Glorious Revolution/Definition
- Glycylcycline/Definition
- Glynn Custred/Definition
- Gmail/Definition
- GoPubMed/Definition
- Goalkeeper (autocannon)/Definition
- Goat/Definition
- Goddard Space Flight Center/Definition
- Going to war/Definition
- Golan Heights/Definition
- Gold drugs/Definition
- Gold open access/Definition
- Golden Party Badge/Definition
- Golden Rule (finance)/Definition
- Goldsmith/Definition
- Goma-2 ECO/Definition
- Good life/Definition
- Google Latitude/Definition
- Google Mail/Definition
- Google Scholar/Definition
- Google Talk/Definition
- Gordon Flake/Definition
- Gordon Oehler/Definition
- Gordon Sullivan/Definition
- Gorgons/Definition
- Government Code and Cipher School/Definition
- Government Communications Security Bureau/Definition
- Governor (United States)/Definition
- Grace Kennan Warnecke/Definition
- Grace-Marie Turner/Definition
- Graft rejection/Definition
- Graft versus host disease/Definition
- Graham Allison/Definition
- Graham Fuller/Definition
- Gram/Definition
- Grammy Award/Definition
- Grand Forks, North Dakota/Definition
- Grand Island, Nebraska/Definition
- Grand jury/Definition
- Granddaughter/Definition
- Grandfather/Definition
- Grandson/Definition
- Grant peer review/Definition
- Granulocyte/Definition
- Granulocyte-macrophage progenitor cell/Definition
- Grave accent/Definition
- Gray propaganda/Definition
- Great Flood/Definition
- Great Offices of State/Definition
- Great Terror/Definition
- Great moderation/Definition
- Greek god/Definition
- Green (colour)/Definition
- Green open access/Definition
- GreenXchange/Definition
- Greg Bagwell/Definition
- Greg Johnson/Definition
- Greg Walden/Definition
- Greg Zanetti/Definition
- Gregg Harper/Definition
- Gregg Rickman/Definition
- Gregory Meeks/Definition
- Gregory Zinoviev/Definition
- Gresham Barrett/Definition
- Gridley-class/Definition
- Gross Rosen Concentration Camp/Definition
- Group of Seven/Definition
- Grover Norquist/Definition
- Growth/Definition
- Growth and stability pact/Definition
- Grumbles from the Grave/Definition
- Guido Goldman/Definition
- Guinea (region)/Definition
- Guitarist/Definition
- Gulag/Definition
- Gun (artillery)/Definition
- Gunning Bedford, Jr./Definition
- Gus Bilirakis/Definition
- Gus Pagonis/Definition
- Gustav von Kahr/Definition
- Guy Spigelman/Definition
- Gynizodon/Definition
- Gyrus/Definition
- H-class (U.K. destroyer)/Definition
- H. Allen Holmes/Definition
- H. R. Haldeman/Definition
- H2S (military)/Definition
- HAHO/Definition
- HALO/Definition
- HBX/Definition
- HC-130/Definition
- HGM-25A Titan I/Definition
- HH-60G/Definition
- HH-60H/Definition
- HH-60M/Definition
- HM Treasury/Definition
- HMAS/Definition
- HMCS Charlottestown/Definition
- HMCS Fredricton/Definition
- HMCS Vancouver/Definition
- HMDS Absalaon (L 16)/Definition
- HMS (naval prefix)/Definition
- HMS Ark Royal (1587)/Definition
- HMS Ark Royal (1914)/Definition
- HMS Ark Royal (1950)/Definition
- HMS Ark Royal (1985)/Definition
- HMS Dreadnought (1553)/Definition
- HMS Dreadnought (1573)/Definition
- HMS Dreadnought (1654)/Definition
- HMS Dreadnought (1691)/Definition
- HMS Dreadnought (1742)/Definition
- HMS Dreadnought (1801)/Definition
- HMS Dreadnought (1875)/Definition
- HMS Dreadnought (1960)/Definition
- HMS Furious/Definition
- HMS Hood (1920)/Definition
- HMS Prince of Wales (2018)/Definition
- HMS Restigouche (DDE 257)/Definition
- HMS Sheffield (1937)/Definition
- HMS Trafalgar (1820)/Definition
- HMS Trafalgar (1841)/Definition
- HMS Trafalgar (1887)/Definition
- HMS Trafalgar (1944)/Definition
- HMS Trafalgar (S107)/Definition
- HMS Warrior (1781)/Definition
- HMS Warrior (1860)/Definition
- HMS Warrior (1905)/Definition
- HMS Warrior (1944)/Definition
- HMX (explosive)/Definition
- HNLMS De Ruyter (1880)/Definition
- HNLMS De Ruyter (1926)/Definition
- HNLMS De Ruyter (1935)/Definition
- HNLMS De Ruyter (1974)/Definition
- HNLMS De Ruyter (C801)/Definition
- HNLMS De Ruyter (F804)/Definition
- HNS/Definition
- HSSPF/Definition
- HV-22 Osprey/Definition
- Haber-Bosch process/Definition
- Habib Malik/Definition
- Habonim Dror/Definition
- Hachiko/Definition
- Hafiz Majeed/Definition
- Hahn-Strasseman point/Definition
- Haim Assa/Definition
- Haim Shaked/Definition
- Haircut (finance)/Definition
- Hal Lindsey/Definition
- Hal Moore/Definition
- Halal/Definition
- Halford Mackinder/Definition
- Halima Embarek Warzazi/Definition
- Halima Toure/Definition
- Halophile/Definition
- Hammer (reflex)/Definition
- Hampshire/Definition
- Hampton Roads/Definition
- Hand/Definition
- Hangeul/Definition
- Hannah Arendt/Definition
- Hans Aumeier/Definition
- Hans Baier/Definition
- Hans Bernd Gisevius/Definition
- Hans Binnendijk/Definition
- Hans Bobermin/Definition
- Hans Fischer/Definition
- Hans Fritzsche/Definition
- Hans Hayn/Definition
- Hans Hohberg/Definition
- Hans Loerner/Definition
- Hans Peter von Heydebreck/Definition
- Hans Schurz/Definition
- Hans Wolfgang Romberg/Definition
- Hans van den Broek/Definition
- Hans von Boineburg-Lengsfeld/Definition
- Hans von Dohnanyi/Definition
- Haptic/Definition
- Harakat ul-Jihad-I-Islami/Definition
- Hard-core pornography/Definition
- Harkat ul-Mujahedin/Definition
- Harlan Ullman/Definition
- Harper & Row/Definition
- Harriet Beecher Stowe/Definition
- Harriette J. Leibovitz/Definition
- Harrison Ford (actor)/Definition
- Harry Barnes/Definition
- Harry Browne/Definition
- Harry Errington (fireboat)/Definition
- Hartsfield-Jackson Atlanta International Airport/Definition
- Harvey Kushner/Definition
- Harvey Rubin/Definition
- Hashemi Rafsanjani/Definition
- Hashemites/Definition
- Hassan Mneimneh/Definition
- Hassan al-Banna/Definition
- Hassan al-Bashir/Definition
- Hastings/Definition
- Hazrat Ali/Definition
- HeLa cells/Definition
- Head (anatomy)/Definition
- Heath Shuler/Definition
- Heather Joseph/Definition
- Heather Mac Donald/Definition
- Heathrow Airport/Definition
- Hebe/Definition
- Heckscher-Ohlin theorem/Definition
- Hector Felipe Fix Fierro/Definition
- Hecuba/Definition
- Hedge fund/Definition
- Hedging/Definition
- Heer/Definition
- Heinrich Bruening/Definition
- Heinrich Schwarz/Definition
- Heinz Erhardt/Definition
- Heinz Fanslau/Definition
- Heinz Guderian/Definition
- Heinz Jost/Definition
- Heinz Schubert/Definition
- Heinz Thilo/Definition
- Hel HaAvir/Definition
- Helen Clark/Definition
- Helen-Louise Hunter/Definition
- Helenus/Definition
- Helicaon/Definition
- Helios/Definition
- Helle Dale/Definition
- Helmut Poppendick/Definition
- Helmut Sonnenfeldt/Definition
- Helmuth James Graf von Moltke/Definition
- Hematocrit/Definition
- Hematology/Definition
- Hematopoiesis/Definition
- Hematopoietic stem cell/Definition
- Hemoglobinopathies/Definition
- Hemolysin/Definition
- Hemosiderin/Definition
- Henning von Tresckow/Definition
- Henrietta Lacks/Definition
- Henrietta Leavitt/Definition
- Henry Brown/Definition
- Henry Catto/Definition
- Henry Knox/Definition
- Henry Kravis/Definition
- Henry Rowen/Definition
- Henry Sokolski/Definition
- Henry Wadsworth Longfellow/Definition
- Henry Waxman/Definition
- Hepatitis A/Definition
- Hephaistos/Definition
- Hera/Definition
- Herb Kohl/Definition
- Herbert Foerstel/Definition
- Herbert Huebner/Definition
- Herbert Okun/Definition
- Herbert von Bose/Definition
- Herculaneum Academy/Definition
- Herding (banking)/Definition
- Herding (economics)/Definition
- Herding (finance)/Definition
- Herefordshire/Definition
- Herfindahl Index/Definition
- Herman Cain/Definition
- Herman Melville/Definition
- Hermann Becker-Freyseng/Definition
- Hermann Ehrhardt/Definition
- Hermann Pook/Definition
- Herta Oberheuser/Definition
- Hertfordshire/Definition
- Herzl Spiro/Definition
- Hesperides/Definition
- Hetch Hetchy Valley/Definition
- Heterotrophy/Definition
- Heuristic/Definition
- Hexadesmia/Definition
- Hexopia/Definition
- Hezb-e-Islami Gulbuddin/Definition
- Hezb-e-Islami Khalis/Definition
- Hezb-i-Islam Gulbuddin/Definition
- Hideyoshi Toyotomi/Definition
- High Mobility Engineering Vehicle/Definition
- High value unit/Definition
- High-altitude medicine/Definition
- High-context language/Definition
- Higher education (UK)/Definition
- Highly enriched uranium/Definition
- Hilary Shelton/Definition
- Hill Air Force Base/Definition
- Hina Jilani/Definition
- Hippodameia/Definition
- Hippolyta/Definition
- Hippolytos/Definition
- Hiragana/Definition
- Hisashi Owada/Definition
- Histiocyte/Definition
- Histology/Definition
- Ho Chi Minh Trail/Definition
- Hodder and Stoughton/Definition
- Home/Definition
- Homer/Definition
- Honey/Definition
- Hooding interrogation techniques/Definition
- Hoosier/Definition
- Horace Mann/Definition
- Horst Klein/Definition
- House (building)/Definition
- House Caucus for Asia-Pacific Economic Cooperation/Definition
- House Minority Leader/Definition
- House of Councillors/Definition
- House of Representatives (Japan)/Definition
- House of Saud/Definition
- Houthi movement/Definition
- Howard Coble/Definition
- Howard Kelly/Definition
- Howard Long/Definition
- Howard McKeon/Definition
- Howard Rheingold/Definition
- Howard T. Tellepsen (fireboat)/Definition
- Howard University/Definition
- Hozumi Nobushige/Definition
- Hubble Space Telescope/Definition
- Hugh Blair/Definition
- Hugh Dowding/Definition
- Hugh Pope/Definition
- Hugh Williamson/Definition
- Human Brain Mapping (conference)/Definition
- Human Rights Act 1998/Definition
- Human Rights First/Definition
- Human body/Definition
- Human brain/Definition
- Human leukocyte antigen/Definition
- Hurricane (weather)/Definition
- Husband/Definition
- Husband Kimmel/Definition
- Hushang Ansary/Definition
- Hussein-McMahon Correspondence/Definition
- Hyaluronic acid/Definition
- Hyaluronidase/Definition
- Hyannis, Massachusetts/Definition
- Hyannisport, Massachusetts/Definition
- Hydra 70 rocket/Definition
- Hydration/Definition
- Hydroelectric power/Definition
- Hydroelectric power plant/Definition
- Hydrophiinae/Definition
- Hydrotherapy/Definition
- Hydroxyl-terminated polybutadiene/Definition
- Hymenoptera/Definition
- Hypercapnia/Definition
- Hypergolic/Definition
- Hyperlink/Definition
- Hypermnesia/Definition
- Hyperoxia/Definition
- Hyphenated science/Definition
- Hypocapnia/Definition
- Hypoxia/Definition
- Hysteresis (economics)/Definition
- I Corps/Definition
- I Marine Expeditionary Force/Definition
- I. K. Gujral/Definition
- I. Peter Wolff/Definition
- IEEE 802 architecture/Definition
- III Corps/Definition
- IJN/Definition
- IJN Chiyoda/Definition
- IJN Hiryu/Definition
- IJN Hoshu/Definition
- IJN Nagato/Definition
- IJN Ryujo/Definition
- IJN Soryu/Definition
- IJN Taiho/Definition
- IMF/Definition
- Ialmenus/Definition
- Ian Brzezinski/Definition
- Iapetos/Definition
- Icelandic Modern Media Initiative/Definition
- Id/Definition
- Idaho National Laboratory/Definition
- Identification (information security)/Definition
- Identity papers/Definition
- Idomeneus/Definition
- Ignorance/Definition
- Igor S. Ivanov/Definition
- Ihsan Bagby/Definition
- Ijtihad/Definition
- Ike Skelton/Definition
- Ikwan-i-Musalamin/Definition
- Ilan Berman/Definition
- Ileana Ros-Lehtinen/Definition
- Ilione/Definition
- Iltefat Hamzavi/Definition
- Ilya Ponomarev/Definition
- Image processing/Definition
- Image segmentation/Definition
- ImageJ/Definition
- Imaging/Definition
- Imaging artifact/Definition
- Imaging gantry/Definition
- Immortal/Definition
- Immunoglobulin G/Definition
- Immunoprecipitation/Definition
- Immunosuppressive agents/Definition
- Imperialism/Definition
- In God We Trust (group)/Definition
- In vitro/Definition
- In vivo/Definition
- Incendiary/Definition
- Incidental finding/Definition
- Incinerated/Definition
- Income effect/Definition
- Incomplete contract/Definition
- Independence (carrier)-class/Definition
- Independence (littoral combat ship)-class/Definition
- Independent fiscal agency/Definition
- Indian Air Force/Definition
- Indigo/Definition
- Indium gallium arsenide/Definition
- Individual rights/Definition
- Indole-3-acetic acid/Definition
- Infant/Definition
- Infectious jaundice/Definition
- Infectivity/Definition
- Infobitt/Definition
- Information assymetry/Definition
- Information asymmetry/Definition
- Information cascade/Definition
- Information overflow/Definition
- Infrared guidance/Definition
- Infrastructure (economics)/Definition
- Inge Viermetz/Definition
- Ingrid Mattson/Definition
- InnerChange Freedom Initiative/Definition
- Inns of Court/Definition
- Insolvency/Definition
- Inspector of Concentration Camps/Definition
- Instant messaging/Definition
- Institut Français des Relations Internationales/Definition
- Institute for Fiscal Studies/Definition
- Institute for Historical Review/Definition
- Institute for National Strategic Studies/Definition
- Institutional quality/Definition
- Institutions/Definition
- Instrumentalism/Definition
- Integrated gasification combined cycle power plant/Definition
- Intel 80186/Definition
- Intel 80188/Definition
- Intel 80386/Definition
- Intel 80486/Definition
- Intel 8088/Definition
- Intellectual property/Definition
- Intelligence interrogation, France, Algerian War/Definition
- Intelligence interrogation, Soviet Union, Great Terror/Definition
- Intensity-modulated radiotherapy/Definition
- Interbank market/Definition
- Interest rate risk/Definition
- Interim High-Mobility Engineering Excavator/Definition
- Intermediate product/Definition
- Internal Revenue Service/Definition
- Internal devaluation/Definition
- Internal rate of return/Definition
- Internally displaced person/Definition
- International Herald Tribune/Definition
- International Institute for Strategic Studies/Definition
- International Monetary and Finance Committee/Definition
- Internet Archive/Definition
- Internet Mail Access Protocol/Definition
- Internet marketing/Definition
- Internet relay chat/Definition
- Intifada/Definition
- Intravenous immune globulin/Definition
- Invasion of Japan/Definition
- Inventory cycle/Definition
- Inverse agonist/Definition
- Inverse synthetic aperture radar/Definition
- Invertebrate/Definition
- Investment bank/Definition
- Iodoform/Definition
- Iolaos/Definition
- Ionization detector/Definition
- Iphicles/Definition
- Iphidamas/Definition
- Iphigeneia/Definition
- Ipsilateral/Definition
- Iranian Revolutionary Guard Corps/Definition
- Iraq Freedom Force/Definition
- Iraqi Security Forces/Definition
- IronPython/Definition
- IronRuby/Definition
- Irredentism/Definition
- Irving Berlin/Definition
- Irving Kristol/Definition
- Irwin Rose/Definition
- Isamu Uehara/Definition
- Isar (river)/Definition
- Isis (mythology)/Definition
- Islam Karimov/Definition
- Islamic Circle of North America/Definition
- Islamic state (polity)/Definition
- Islamic theology/Definition
- Island hopping/Definition
- Ismail Haniya/Definition
- Isolation interrogation techniques/Definition
- Isolationism/Definition
- Isometric mapping/Definition
- Isopropanol/Definition
- Isoproterenol/Definition
- Isothymia/Definition
- Israela Oron/Definition
- Italian-American cuisine/Definition
- Ivar Aasen/Definition
- Ivo Daalder/Definition
- Iwao Oyama/Definition
- J-7 (fighter)/Definition
- J. Brian Atwood/Definition
- J. Clayburn LaForce/Definition
- J. Edgar Hoover/Definition
- J. Gresham Barrett/Definition
- J. Kenneth Blackwell/Definition
- J. Peter Pham/Definition
- J. Randy Forbes/Definition
- J. Robinson West/Definition
- J. Scott Carpenter/Definition
- J. Stapleton Roy/Definition
- J. William Middendorf/Definition
- J.D. Foster/Definition
- J.J. Goldberg/Definition
- JRuby/Definition
- JTRS waveform/Definition
- JUMPSEAT/Definition
- Jack David/Definition
- Jack Matlock/Definition
- Jack Rakove/Definition
- Jack Stack/Definition
- Jackhammer/Definition
- Jacksonian American nationalism/Definition
- Jacob Broom/Definition
- Jacques deLisle/Definition
- Jahiliyya/Definition
- Jaiku/Definition
- Jaime Daremblum/Definition
- Jaish al-Mahdi/Definition
- Jaish-e-Mohammed/Definition
- James A. Thurber/Definition
- James Abourezk/Definition
- James Carafano/Definition
- James Clapper/Definition
- James Clyburn/Definition
- James Creighton/Definition
- James D. Daly/Definition
- James Daniel Phillips/Definition
- James Davis/Definition
- James DeGraffenreid/Definition
- James Dewar/Definition
- James Dickey/Definition
- James Dobbins/Definition
- James Dubik/Definition
- James Dunlap/Definition
- James E. Webb/Definition
- James Ellis (actor)/Definition
- James Fallows/Definition
- James Fenimore Cooper/Definition
- James Gattuso/Definition
- James H. Ellis/Definition
- James Holloway/Definition
- James Inhofe/Definition
- James Joyner/Definition
- James Kirkup/Definition
- James Kurth/Definition
- James L. Jones (U.S. Chamber of Commerce)/Definition
- James Logan/Definition
- James Ludes/Definition
- James Lyons, Jr./Definition
- James M. Henderson, Sr./Definition
- James Mattis/Definition
- James McHenry/Definition
- James O. Ellis/Definition
- James Oberstar/Definition
- James Perkins/Definition
- James Phillips/Definition
- James Piscatori/Definition
- James Risch/Definition
- James Robbins/Definition
- James Rucker/Definition
- James Sasser/Definition
- James Shumaker/Definition
- James Steinberg/Definition
- James T. Kirk/Definition
- James Thompson/Definition
- James Watkins/Definition
- Jamie Fly/Definition
- Jamie Glazov/Definition
- Jamie Levin/Definition
- Jamil Abdullah Al-Amin/Definition
- Jamison Foser/Definition
- Jan Baran/Definition
- Jan LaRue/Definition
- Jan Schakowsky/Definition
- Jane Chastain/Definition
- Jane Goodall/Definition
- Jane Harman/Definition
- Jane Holl Lute/Definition
- Jane Olson/Definition
- Jane Stromseth/Definition
- Janet LaRue/Definition
- Janet Parshall/Definition
- Janggi/Definition
- Janice Schakowsky/Definition
- Janice Shaw Crouse/Definition
- Janjaweed/Definition
- Japan-South Korea relations/Definition
- Japanese Center Force (Leyte)/Definition
- Japanese Maritime Self-Defense Force/Definition
- Jared Ingersoll/Definition
- Jared Taylor/Definition
- Jason/Definition
- Jason Altmire/Definition
- Jason Chaffetz/Definition
- Jason Moats/Definition
- Java, Indonesia/Definition
- Jay Cohen/Definition
- Jay Sekulow/Definition
- Jayson Ahern/Definition
- Jean Baptiste Moliere/Definition
- Jean Chretien/Definition
- Jean Joseph Etienne Lenoir/Definition
- Jean Schmidt/Definition
- Jean Ziegler/Definition
- Jean-Claude Bradley/Definition
- Jean-Paul Sartre/Definition
- Jeane Kirkpatrick/Definition
- Jeanine McDonnell/Definition
- Jeanne Shaheen/Definition
- Jeanneane Maxon/Definition
- Jeb Hensarling/Definition
- Jeff Bingaman/Definition
- Jeff Faux/Definition
- Jeff Flake/Definition
- Jeff Merkley/Definition
- Jeff Miller/Definition
- Jeffrey Blattner/Definition
- Jeffrey Davidow/Definition
- Jeffrey Fiedler/Definition
- Jeffrey Harley/Definition
- Jeffrey Herbener/Definition
- Jeffrey L. Fowler/Definition
- Jeffrey Leonard/Definition
- Jeffrey Niner/Definition
- Jeffrey Runge/Definition
- Jeffrey Smith/Definition
- Jeffrey White/Definition
- Jeffry Mallow/Definition
- Jena/Definition
- Jena Nomina Anatomica/Definition
- Jennifer Roback Morse/Definition
- Jenny Meyer/Definition
- Jeremy Ben-Ami/Definition
- Jeremy Rabkin/Definition
- Jeremy Shapiro/Definition
- Jeri Thomson/Definition
- Jericho (missile)/Definition
- Jerome Corsi/Definition
- Jerome Shestack/Definition
- Jerrold Nadler/Definition
- Jerry Goldsmith/Definition
- Jerry Goodman/Definition
- Jesse Benton/Definition
- Jesse Jackson, Jr./Definition
- Jesse Lee Peterson/Definition
- Jessica Tuchman Mathews/Definition
- Jessica deGraffenreid/Definition
- Jet Propulsion Laboratory/Definition
- Jet fuel/Definition
- Jewish Academic Network for Israeli-Palestinian Peace/Definition
- Jewish American/Definition
- Jewish-American cuisine/Definition
- JihadWatch/Definition
- Jill Iscol/Definition
- Jill Mesirov/Definition
- Jill Stanek/Definition
- Jill Stein/Definition
- Jim Bunning/Definition
- Jim Clarke/Definition
- Jim Cooper/Definition
- Jim DeMint/Definition
- Jim Funari/Definition
- Jim Hacker/Definition
- Jim Himes/Definition
- Jim Jordan/Definition
- Jim Marshall/Definition
- Jim McGovern/Definition
- Jim Moran/Definition
- Jim Sensenbrenner/Definition
- Jim Talent/Definition
- Jim Thomas/Definition
- Jim Webb/Definition
- Jo Ann Davis/Definition
- Jo Ann Emerson/Definition
- Jo Bonner/Definition
- Jo-Ann Mort/Definition
- JoAnn Abbott/Definition
- Joanne Leedom-Ackerman/Definition
- Jocasta/Definition
- Joe Allbaugh/Definition
- Joe Baca/Definition
- Joe Barton/Definition
- Joe Clark/Definition
- Joe Courtney/Definition
- Joe Crowley/Definition
- Joel Barkan/Definition
- Joel Belz/Definition
- Johannes Popitz/Definition
- Johari Abdulmalik/Definition
- John Abele/Definition
- John Abizaid/Definition
- John Arensmeyer/Definition
- John Ashbrook/Definition
- John Azzarello/Definition
- John Barrasso/Definition
- John Barrow/Definition
- John Batiste/Definition
- John Bellinger III/Definition
- John Billings/Definition
- John Bolton/Definition
- John Boozman/Definition
- John Calabrese/Definition
- John Campbell (politician)/Definition
- John Carter (politician)/Definition
- John Conyers/Definition
- John Cornyn/Definition
- John Culberson/Definition
- John Curry/Definition
- John D. Rockefeller IV/Definition
- John Danforth/Definition
- John Dean/Definition
- John Dendahl/Definition
- John Despres/Definition
- John Dewey/Definition
- John Drescher/Definition
- John Duncan/Definition
- John Eibner/Definition
- John Esposito/Definition
- John F. Kennedy International Airport/Definition
- John F. Mercer/Definition
- John Foss/Definition
- John Gibbons/Definition
- John Greco (television producer)/Definition
- John Hagee/Definition
- John Hall (banker)/Definition
- John Harris/Definition
- John Harvey/Definition
- John Holmes (diplomat)/Definition
- John J. Curtin, Jr./Definition
- John James Audubon/Definition
- John Karatzas/Definition
- John Kline/Definition
- John Langdon/Definition
- John Lansing, Jr./Definition
- John Larson/Definition
- John Laughland/Definition
- John Lehman/Definition
- John Lenczowski/Definition
- John Linder/Definition
- John Loftus/Definition
- John Loh/Definition
- John M. Olin Foundation/Definition
- John Maurer/Definition
- John McCain IV/Definition
- John McCain Jr./Definition
- John McHugh/Definition
- John McLaughlin/Definition
- John Mearsheimer/Definition
- John Mica/Definition
- John Monash/Definition
- John Morton/Definition
- John Newell/Definition
- John Norton Moore/Definition
- John Olver/Definition
- John Palms/Definition
- John Perazzo/Definition
- John Philip Sousa/Definition
- John Podesta/Definition
- John R. Commons/Definition
- John R. Lott, Jr./Definition
- John Reid/Definition
- John Reinhardt/Definition
- John Ruskin/Definition
- John S. Clark Jr./Definition
- John Sarbanes/Definition
- John Shadegg/Definition
- John Shalikashvili/Definition
- John Shattuck/Definition
- John Sigler/Definition
- John Smith (Labour Party leader)/Definition
- John Solomon/Definition
- John Stauber/Definition
- John Sullivan/Definition
- John T. Boggs/Definition
- John Tierney/Definition
- John Tuskey/Definition
- John Warner/Definition
- John White/Definition
- John Wilbanks/Definition
- John Witherspoon/Definition
- John Yarmuth/Definition
- Johnny Isakson/Definition
- Johns Hopkins University/Definition
- Johnson Space Center/Definition
- Joint Enabling Capabilities Command/Definition
- Joint Fires Integration and Interoperability Team/Definition
- Joint Operation Planning and Execution System/Definition
- Joint Personnel Recovery Agency/Definition
- Joint Readiness Training Center/Definition
- Joint Sessions (British philosophy)/Definition
- Joint bond/Definition
- Joint warfare/Definition
- Jolly Roger/Definition
- Jon Alterman/Definition
- Jon Tester/Definition
- Jonathan Adelman/Definition
- Jonathan Dancy/Definition
- Jonathan Dayton/Definition
- Jonathan Falwell/Definition
- Jonathan Schanzer/Definition
- Jonathan Slevin/Definition
- Jonathan Soros/Definition
- Jordan Hatcher/Definition
- Jose Angel Gurria Treviño/Definition
- Jose Maria Aznar/Definition
- Josef Ackermann/Definition
- Josef Buehler/Definition
- Josef Vogt/Definition
- Joseph Charyk/Definition
- Joseph Conrad/Definition
- Joseph Crowley/Definition
- Joseph Farah/Definition
- Joseph Hoar/Definition
- Joseph Lieberman/Definition
- Joseph Lister/Definition
- Joseph Pitts/Definition
- Joseph Ralston/Definition
- Joseph Skelly/Definition
- Joseph Sutter/Definition
- Joseph diGenova/Definition
- Josh Kurlantzick/Definition
- Joshua Muravchik/Definition
- Joshua Reichert/Definition
- José Antonio Bengoa Cabello/Definition
- José E. Alvarez/Definition
- Journal peer review/Definition
- Journal-level metrics/Definition
- Journey to the Center of the Earth/Definition
- Joyce Battle/Definition
- Ju-88 (bomber)/Definition
- Juan Zarate/Definition
- Judd Gregg/Definition
- Judge Advocate General/Definition
- Judge Advocate General Corps/Definition
- Judith Barnett/Definition
- Judith Freeman/Definition
- Judith Gelman/Definition
- Judith Yaphe/Definition
- Judy Chu/Definition
- Judy Van Rest/Definition
- Julia Annas/Definition
- Julia Chang Bloch/Definition
- Julia Gillard/Definition
- Julie E. Cohen/Definition
- Julie Fischer/Definition
- Julie Nolke/Definition
- Julie Stahl/Definition
- Juliette Kayyem/Definition
- Julius Leber/Definition
- Julius Uhl/Definition
- Juma Namangani/Definition
- June Teufel Dreyer/Definition
- Juniper Networks/Definition
- Junta/Definition
- Jury Team/Definition
- Jus ad bellum/Definition
- Jus in bello/Definition
- Jus post bellum/Definition
- Justice Fellowship/Definition
- Justin Bieber/Definition
- Justin Germany/Definition
- Justine Kilpatrick/Definition
- Justine Rosenthal/Definition
- Jyri Engeström/Definition
- K-9 (TV series)/Definition
- K-type star/Definition
- K. Michael Conaway/Definition
- KAB-250/Definition
- KAB-250L/Definition
- KAB-500S/Definition
- KC-130/Definition
- KC-130J HARVEST HAWK/Definition
- KDK-class/Definition
- KG-13/Definition
- KH-10 Manned Orbiting Laboratory/Definition
- KH-5 ARGON/Definition
- KH-6 LANYARD/Definition
- KH-7 GAMBIT/Definition
- KH-9 HEXAGON/Definition
- KMS/Definition
- KMS Gneisenau/Definition
- KMS Scharnhorst/Definition
- KRIPO/Definition
- Kabaddi/Definition
- Kadima/Definition
- Kaldor-Hicks criterion/Definition
- Kana/Definition
- Kanagawa University/Definition
- Kandahar/Definition
- Kansas City (metropolitan area)/Definition
- Karbala/Definition
- Karen Horney/Definition
- Karen Mack/Definition
- Karim Khalili/Definition
- Karl Bonhoeffer/Definition
- Karl Ernst/Definition
- Karl Frisch/Definition
- Karl Fritzsch/Definition
- Karl Genzken/Definition
- Karl Heinz Kamp/Definition
- Karl Rahner/Definition
- Karl Ritter/Definition
- Karl Rove/Definition
- Karl Sommer/Definition
- Kashtan (air defense)/Definition
- Kaspar Villiger/Definition
- Kassahun Kebede/Definition
- Katana/Definition
- Kate Martin/Definition
- Katherine Marshall/Definition
- Kathleen Bailey/Definition
- Kathleen Christison/Definition
- Kathy Shaidle/Definition
- Katie Walker/Definition
- Katsa/Definition
- Katy Perry/Definition
- Kay Bailey Hutchison/Definition
- Kay Hagan/Definition
- Kay Peng Khoo/Definition
- Keigo Kiyoura/Definition
- Keith Payne/Definition
- Kel-F/Definition
- Kemalism (globalization)/Definition
- Ken Buck/Definition
- Ken Calvert/Definition
- Ken Connor/Definition
- Ken Cuccinelli II/Definition
- Ken Windebank/Definition
- Kendrick Meek/Definition
- Kennedy Space Center/Definition
- Kennedy syndrome/Definition
- Kenneth Anderson/Definition
- Kenneth Arrow/Definition
- Kenneth Bob/Definition
- Kenneth Duberstein/Definition
- Kenneth Emanuelson/Definition
- Kenneth Melman/Definition
- Kenneth Starr/Definition
- Kenneth Stein/Definition
- Kenneth Timmerman/Definition
- Kenneth Tomlinson/Definition
- Kenneth Weinstein/Definition
- Kenny Marchant/Definition
- Kent Conrad/Definition
- Kent Kiefer/Definition
- Kerosene/Definition
- Ketumile Masire/Definition
- Keven P. Cusack/Definition
- Kevin Beary/Definition
- Kevin Brady/Definition
- Kevin MacDonald/Definition
- Kevin McCarthy/Definition
- Kevin Rudd/Definition
- Keyword stuffing/Definition
- Khaled Mishal/Definition
- Khalid Durán/Definition
- Ki Ho Lee/Definition
- Kidnapping/Definition
- Kim Campbell/Definition
- Kimberly Kessler/Definition
- Kinahan Cornwallis/Definition
- Kinetic fires/Definition
- King/Definition
- Kira Nerys/Definition
- Kirsten Gillibrand/Definition
- Kitty Hawk-class/Definition
- Kiyohide Shima/Definition
- Knot (rope)/Definition
- Kochi (Japanese city)/Definition
- Kofi Annan/Definition
- Komodo dragon/Definition
- Kongo-class battleship/Definition
- Koninklijke Luchtmacht/Definition
- Konrad Meyer-Hetling/Definition
- Konrad Schaefer/Definition
- Korbinian Brodmann/Definition
- Korean peninsula/Definition
- Koshiro Oikawa/Definition
- Krasnopol guided shell/Definition
- Krewe/Definition
- Kristin Lord/Definition
- Kuffar/Definition
- Kumarbi/Definition
- Kunduz Province/Definition
- Kunnskapsforlaget/Definition
- Kurd/Definition
- Kurile Islands/Definition
- Kurmanbek Bakiyev/Definition
- Kurt Blome/Definition
- Kurt Daluege/Definition
- Kwajalein Atoll/Definition
- Kwame Nkrumah/Definition
- Kyoto Protocol/Definition
- L. Brent Bozell III/Definition
- L. Brent Bozell Jr./Definition
- L. David Marquet/Definition
- L.J. (Lyda Judson) Hanifan/Definition
- LGM-30 Minuteman/Definition
- LIBOR/Definition
- LIBOR-OIS spread/Definition
- LX-04/Definition
- LX-07/Definition
- LX-09/Definition
- LX-10/Definition
- LX-11/Definition
- La ilaha illa Allah/Definition
- LaGuardia Airport/Definition
- Labor Party (Israel)/Definition
- Labour (economics)/Definition
- Labour force/Definition
- Labour market/Definition
- Lael Brainard/Definition
- Lagerfuehrer/Definition
- Laina Farhat-Holzman/Definition
- Laios/Definition
- Lakatos Award/Definition
- Lamar Smith/Definition
- Lamellae/Definition
- Lancashire/Definition
- Land surveying/Definition
- Land warfare/Definition
- Land-based naval aircraft/Definition
- Landing Craft Rocket/Definition
- Landing Helicopter Assault/Definition
- Landing Helicopter Dock/Definition
- Landing Platform Helicopter/Definition
- Landing Ship Dock/Definition
- Landing Vehicle Tracked/Definition
- Landmark/Definition
- Landsmål/Definition
- Lang Son City/Definition
- Lanthanide/Definition
- Lanthanoid/Definition
- Laodice/Definition
- Lara Bergthold/Definition
- Large cruiser/Definition
- Larry Arnn/Definition
- Larry Craig/Definition
- Larry Elder/Definition
- Larry Kissell/Definition
- Larry Madison/Definition
- Larry Page/Definition
- Larry Sabato/Definition
- Larry Shaw/Definition
- Larry Welch/Definition
- Larry Wortzel/Definition
- Larynx/Definition
- Lashkar Gah/Definition
- Lasker Awards/Definition
- Latanya Sweeney/Definition
- Lateral ventricles/Definition
- Latif Huseynov/Definition
- Laura Brown Hernandez/Definition
- Laura D'Andrea Tyson/Definition
- Laura Richardson/Definition
- Laura Rozen/Definition
- Laura Schlesinger/Definition
- Laurence Silberman/Definition
- Laurence Sterne/Definition
- Laurie O. Robinson/Definition
- Lavrenti Beria/Definition
- Lawrence Eagleburger/Definition
- Lawrence Kadish/Definition
- Lawrence Korb/Definition
- Lawrence Sheets/Definition
- Lawrence Summers/Definition
- Lead nitrate/Definition
- Lead selenide/Definition
- Lead styphnate/Definition
- Leaf (organ)/Definition
- League of American Patriots/Definition
- Leah Pisar/Definition
- Leaoa/Definition
- Learning/Definition
- Leda/Definition
- Lee Casey/Definition
- Lee Edwards/Definition
- Lee Gunn/Definition
- Lee Hamilton/Definition
- Lee LaHaye/Definition
- Left (politics)/Definition
- Legislature/Definition
- Leibstandarte Adolf Hitler Division/Definition
- Leicester (cheese)/Definition
- Leicestershire/Definition
- Leighton Smith/Definition
- Lemming/Definition
- Lender of last resort/Definition
- Leo E. Linbeck, Jr./Definition
- Leo Strauss/Definition
- Leo Volk/Definition
- Leon Edney/Definition
- Leon Panetta/Definition
- Leonard Grob/Definition
- Leonard Lance/Definition
- Leonardo Conti/Definition
- Leonteus/Definition
- Leontief paradox/Definition
- Leptotes (butterfly)/Definition
- Leptotes bicolor/Definition
- Leptotes tenuis/Definition
- Lernaian Hydra/Definition
- Leroy Anderson/Definition
- Les Kinsolving/Definition
- Leslie Gelb/Definition
- Leslie Groves/Definition
- Lester Lyles/Definition
- Lester Pearson/Definition
- Lethal triad/Definition
- Leto/Definition
- Leverage/Definition
- Leverage ratio (banking)/Definition
- Lewes/Definition
- Lewis Libby/Definition
- Lexicon/Definition
- Liabilities (accounting)/Definition
- Liabilities (banking)/Definition
- Liam Fox/Definition
- Liaquat Ahamed/Definition
- Libertarian Party (US)/Definition
- Liberty Lobby/Definition
- Lieber Code/Definition
- Lieutenant (land forces)/Definition
- Life cycle (biology)/Definition
- Light machine gun/Definition
- Light-harvesting complex/Definition
- Lila Tretikov/Definition
- Limor Abunil/Definition
- Lincoln Bloomfield, Jr/Definition
- Lincoln Chafee/Definition
- Lincoln, Nebraska/Definition
- Linda Banton/Definition
- Linda Chavez/Definition
- Linda Cohen/Definition
- Linda Sanchez/Definition
- Lindsay Hoyle/Definition
- Lindsey Graham/Definition
- Lindsey Neas/Definition
- Link farm/Definition
- Linked data/Definition
- Lipotes vexillifer/Definition
- Lipotropin/Definition
- Liquid fuel rocket/Definition
- Liquidity/Definition
- Liquidity crisis/Definition
- Liquidity preference/Definition
- Liquidity risk/Definition
- Liquidity spiral/Definition
- Liquidity trap/Definition
- Lisa Curtis/Definition
- Lisa Graves/Definition
- Lisa Jackson/Definition
- Lisa Murkowski/Definition
- Lithotripsy/Definition
- Little Walsingham/Definition
- Lloyd Billingsley/Definition
- Locomotion/Definition
- Logo/Definition
- Logrolling/Definition
- Lois Capps/Definition
- London City Airport/Definition
- London Controlling Section/Definition
- London Review of International Law/Definition
- Lone country/Definition
- Long Commission/Definition
- Long Lance (torpedo)/Definition
- Long position/Definition
- Lord Ashdown of Norton-sub-Hamdon/Definition
- Lord Browne of Madingley/Definition
- Lord Hurd of Westwell/Definition
- Lord Kerr of Kinlochard/Definition
- Lord Patten of Barnes/Definition
- Lord Robertson of Port Ellen/Definition
- Lord's Resistance Army/Definition
- Loretta Sanchez/Definition
- Loss aversion/Definition
- Lothar Beutel/Definition
- Lothar Fendler/Definition
- Loudness/Definition
- Louie Gohmet/Definition
- Louis Beam/Definition
- Louis Fisher/Definition
- Louis Freeh/Definition
- Louis K. Meisel/Definition
- Louise Arbour/Definition
- Louise Slaughter/Definition
- Lourdes Baird/Definition
- Low explosive/Definition
- Lox (food)/Definition
- Lua/Definition
- Lucien Ellington/Definition
- Lucien Febvre/Definition
- Lucille Roybal-Allard/Definition
- Lucy F. Reed/Definition
- Luftforsvaret/Definition
- Luis Gutierrez/Definition
- Luke Bierman/Definition
- Lung/Definition
- Luqman Amin Abdullah/Definition
- Luther Martin/Definition
- Lymphadenitis/Definition
- Lymphangiosarcoma/Definition
- Lymphatic system/Definition
- Lymphoid progenitor cell/Definition
- Lynn Buzzard/Definition
- Lynn Jenkins/Definition
- Lynn Margulis/Definition
- Lynn Westmoreland/Definition
- Lynn Woolsey/Definition
- Lyophilizer/Definition
- Lyssencephaly/Definition
- M-4 (rifle)/Definition
- M. Elisabeth Paté-Cornell/Definition
- M. Osman Yousuf/Definition
- M. Peter McPherson/Definition
- M. Terry Cooke/Definition
- M. Zuhdi Jasser/Definition
- M1 carbine/Definition
- M1059/Definition
- M107 shell/Definition
- M1127 reconnaissance vehicle/Definition
- M1134 anti-tank guided missile vehicle/Definition
- M1135 nuclear, biological, chemical reconnaissance vehicle/Definition
- M113A1/Definition
- M113A2/Definition
- M113A3/Definition
- M117 bomb/Definition
- M118E1/Definition
- M118E1 bomb/Definition
- M125 mortar carrier/Definition
- M198 howitzer/Definition
- M2 (machine gun)/Definition
- M2 Browning (machine gun)/Definition
- M2 mortar/Definition
- M230 autocannon/Definition
- M47 Dragon/Definition
- M729 combat engineering vehicle/Definition
- M777 howitzer/Definition
- M79 grenade launcher/Definition
- M795 shell/Definition
- M864 shell/Definition
- M981 fire support team vehicle/Definition
- MALSINDO/Definition
- MENA/Definition
- MH-53E Sea Dragon/Definition
- MH-60/Definition
- MH-60A/Definition
- MH-60G/Definition
- MH-60K/Definition
- MH-60K Blackhawk/Definition
- MH-60L/Definition
- MH-60M/Definition
- MH-60R/Definition
- MH-60S/Definition
- MH-60S Knighthawk/Definition
- MOBO Awards/Definition
- MOPP (oncology)/Definition
- MP-RAGE/Definition
- MQ-3 Dark Star/Definition
- MQ-4 GLOBAL HAWK/Definition
- MQ-4 Global Hawk/Definition
- MQ-5 Hunter/Definition
- MRC-145/Definition
- MRI pulse sequence/Definition
- MSNBC/Definition
- Machaon/Definition
- Machine-readable data/Definition
- Mackubin Owens/Definition
- Macrochilus/Definition
- Macroprudential/Definition
- Madeleine Albright/Definition
- Madeleine Bordallo/Definition
- Maenads/Definition
- Maggie Bar-Tura/Definition
- Maghreb/Definition
- Magnetoencephalography/Definition
- Mahan-class/Definition
- Mahara (software)/Definition
- Mahdi Army/Definition
- Mahmoud Abbas/Definition
- Mainframe/Definition
- Majid Ghafghaichi/Definition
- Major/Definition
- Malaysia/Definition
- Malcolm Arnold/Definition
- Malcolm Hoenlein/Definition
- Male/Definition
- Malik Zulu Shabazz/Definition
- Mammary Paget's Disease/Definition
- Mammary Paget's disease/Definition
- Mamoru Shigemetsu/Definition
- Man/Definition
- Man Who Sold the Moon (short story)/Definition
- Mandatory Palestine/Definition
- Maneeza Hossain/Definition
- Manifesto of the 93/Definition
- Manila/Definition
- Manitoba/Definition
- Mansur Dadullah Akhund/Definition
- Manuscript peer review/Definition
- Map projection/Definition
- Marc Abrams/Definition
- Marc Ambinder/Definition
- Marc Blitz/Definition
- Marc Lasry/Definition
- Marc Leland/Definition
- Marc Lynch/Definition
- Marching cubes/Definition
- Marcia Freedman/Definition
- Marcia Fudge/Definition
- Marcia Kuntz/Definition
- Marco Aurelio Severino/Definition
- Margaret Atwood/Definition
- Margaret Dumont/Definition
- Margery Tabankin/Definition
- Marginal cost/Definition
- Marginal product/Definition
- Marginal propensity to consume/Definition
- Marginal propensity to save/Definition
- Marginal rate of substitution/Definition
- Marginal tax rate/Definition
- Marginal utility/Definition
- Maria Cantwell/Definition
- Maria L. Carl/Definition
- Maria Wilkinson/Definition
- Mariam Bell/Definition
- Marian theology/Definition
- Marilyn Musgrave/Definition
- Marin Strmecki/Definition
- Marina Ottaway/Definition
- Marine 1 (San Diego)/Definition
- Marine 2 (San Diego)/Definition
- Mario Diaz/Definition
- Marion Berry/Definition
- Mariscada/Definition
- Marissa Mayer/Definition
- Marji'/Definition
- Marji' al-Taqlid/Definition
- Marji'iyya/Definition
- Marjorie M. Scardino/Definition
- Mark 12 (nuclear weapon)/Definition
- Mark 15 (nuclear weapon)/Definition
- Mark 19 (nuclear weapon)/Definition
- Mark 20 Rockeye/Definition
- Mark 23 (nuclear weapon)/Definition
- Mark 39 (nuclear weapon)/Definition
- Mark 46 (torpedo)/Definition
- Mark 46 torpedo/Definition
- Mark 48 (torpedo)/Definition
- Mark 48 torpedo/Definition
- Mark 5 (nuclear weapon)/Definition
- Mark 6 (nuclear weapon)/Definition
- Mark 8 (torpedo)/Definition
- Mark 81 bomb/Definition
- Mark 82 bomb/Definition
- Mark 83 bomb/Definition
- Mark 84 bomb/Definition
- Mark 9 (nuclear weapon)/Definition
- Mark Begich/Definition
- Mark Cotterill/Definition
- Mark Dubowitz/Definition
- Mark Earley/Definition
- Mark Mawrence/Definition
- Mark Meckler/Definition
- Mark Medish/Definition
- Mark Potok/Definition
- Mark Pryor/Definition
- Mark Schneider/Definition
- Mark Souder/Definition
- Mark T. Clark/Definition
- Mark Udall/Definition
- Mark to market/Definition
- Market concentration/Definition
- Market interaction/Definition
- Market maker/Definition
- Market power/Definition
- Market risk/Definition
- Market structure/Definition
- Marko Prelec/Definition
- Marsha Blackburn/Definition
- Marshall Breger/Definition
- Marshall Space Flight Center/Definition
- Marsupiaria/Definition
- Martha C. Pickett/Definition
- Martha Gies-Chumney/Definition
- Martha Krebs/Definition
- Martin Heinrich/Definition
- Martin Kramer/Definition
- Martin Taft/Definition
- Martina Puzyna/Definition
- Marty Meehan/Definition
- Martyrdom/Definition
- Martyrdom attack/Definition
- Marvin Olasky/Definition
- Marvin Zonis/Definition
- Marwan al Shehhi/Definition
- Marxist-Leninism/Definition
- Mary Bono/Definition
- Mary Caulkins/Definition
- Mary Katharine Ham/Definition
- Mary Landrieu/Definition
- Mary Livingstone/Definition
- Mary Robinson/Definition
- Marymount University/Definition
- Masatake Terauchi/Definition
- Mass murder/Definition
- Master System/Definition
- Masuji Ibuse/Definition
- Mathias Graf/Definition
- Matra/Definition
- Matra Armat/Definition
- Matsuo Basho/Definition
- Matt Mayer/Definition
- Matthew Carter/Definition
- Matthew Nowicki/Definition
- Matthew Waxman/Definition
- Maulana/Definition
- Maulvi/Definition
- Maulvi Aminullah/Definition
- Maulvi Hamdullah/Definition
- Maureen McDonnell/Definition
- Maurice Hinchey/Definition
- Mauthausen-Gusen Concentration Camp/Definition
- Max Bergmann/Definition
- Max Born/Definition
- Max Kampelman/Definition
- Max Kiefer/Definition
- Max Singer/Definition
- Max Sollmann/Definition
- Maxillariinae/Definition
- Maxim Gorky/Definition
- Maximilian Grabner/Definition
- Maxine Waters/Definition
- Maxwell Air Force Base/Definition
- Maxwell's demon/Definition
- Maya peoples/Definition
- Mazie Hirono/Definition
- McIntosh (fruit)/Definition
- Mean corpuscular hemoglobin concentration/Definition
- Means test/Definition
- Measurand/Definition
- Mecca/Definition
- Medea/Definition
- Media Matters Action Network/Definition
- Media monitoring/Definition
- Median (statistics)/Definition
- Medicaid/Definition
- Medical oncology/Definition
- Medical physics/Definition
- Medicare Prescription Drug Price Negotiation Act/Definition
- Medusa (mythology)/Definition
- Mefloquine/Definition
- Mega-CD/Definition
- Megakaryocyte-erythroid progenitor cell/Definition
- Megaloblast/Definition
- Megalothymia/Definition
- Megan McArdle/Definition
- Megara/Definition
- Meges/Definition
- Meghan, Duchess of Sussex/Definition
- Megiddo/Definition
- Mehdi Rouhani/Definition
- Mehrzad Boroujerdi/Definition
- Mein Kampf/Definition
- Mekentosj.com/Definition
- Mel Martinez/Definition
- Mel Watt/Definition
- Melania Trump/Definition
- Melissa Bean/Definition
- Melting point/Definition
- Membrane biophysics/Definition
- Menelaos/Definition
- Menestheus/Definition
- Meningoencephalitis/Definition
- Meperidine/Definition
- Mercaptopurine/Definition
- Merchandise trade/Definition
- Mercurial (software)/Definition
- Mercury cadmium telluride/Definition
- Meretz-USA/Definition
- Meriones/Definition
- Merrill McPeak/Definition
- Merseyside/Definition
- Mesothelioma/Definition
- Meta tags/Definition
- Metabolome/Definition
- Metamorphoses (Ovid)/Definition
- Metaneira/Definition
- Metazoan/Definition
- Metes and bounds cadastral system/Definition
- Methane hydrate/Definition
- Methanogenesis/Definition
- Methylphosphonyl difluoride/Definition
- Metis/Definition
- Metre (music)/Definition
- Metric distortion/Definition
- Metropole/Definition
- Metropolitan borough/Definition
- Meyrav Wurmser/Definition
- Mi-28 (helicopter)/Definition
- MiG-23 (fighter)/Definition
- MiG-25 FOXBAT/Definition
- Michael Ackley/Definition
- Michael Anastasio/Definition
- Michael Armacost/Definition
- Michael Badnarik/Definition
- Michael Barone/Definition
- Michael Bennet/Definition
- Michael Berkow/Definition
- Michael Bromwich/Definition
- Michael Capuano/Definition
- Michael Castle/Definition
- Michael Chertoff/Definition
- Michael Cohen/Definition
- Michael Conaway/Definition
- Michael Cox/Definition
- Michael Cutler/Definition
- Michael Davidson/Definition
- Michael Dunlavey/Definition
- Michael Eisenstadt/Definition
- Michael Ende/Definition
- Michael Fain/Definition
- Michael Farris/Definition
- Michael Flynn/Definition
- Michael German/Definition
- Michael Glennon/Definition
- Michael Green/Definition
- Michael Hichborn/Definition
- Michael Horowitz/Definition
- Michael Jacobson/Definition
- Michael K. Young/Definition
- Michael Lenhart/Definition
- Michael Lippert/Definition
- Michael Little/Definition
- Michael Martin (philosopher)/Definition
- Michael Martin (politician)/Definition
- Michael McCaul/Definition
- Michael McManus/Definition
- Michael Medved/Definition
- Michael Newton/Definition
- Michael Novak/Definition
- Michael Oren/Definition
- Michael Ostrolenk/Definition
- Michael Patrick Leahy/Definition
- Michael Potts/Definition
- Michael Radu/Definition
- Michael Rea/Definition
- Michael Rubin/Definition
- Michael Sterner/Definition
- Michael Turner/Definition
- Michael Wesse/Definition
- Michel Rocard/Definition
- Michele Wilson/Definition
- Microblogging/Definition
- Microcephaly/Definition
- Microgyria/Definition
- Micrometre/Definition
- Microtubule/Definition
- Middle American News/Definition
- Middle age/Definition
- Midge Decter/Definition
- Migration (earwax)/Definition
- Migration (ecology)/Definition
- Miguel Alfonso Martinez/Definition
- Mika Brzezinski/Definition
- Mike Capuano/Definition
- Mike Crapo/Definition
- Mike Durkee/Definition
- Mike Fegelman/Definition
- Mike Gaske/Definition
- Mike Honda/Definition
- Mike Johanns/Definition
- Mike Lee/Definition
- Mike McIntyre/Definition
- Mike McMahon (politician)/Definition
- Mike Moore/Definition
- Mike Pence/Definition
- Mike Perez/Definition
- Mike Quigley/Definition
- Mike Rogers/Definition
- Mike Ross/Definition
- Mike Thompson/Definition
- Mike Turner/Definition
- Mild physical contact/Definition
- Miley Cyrus/Definition
- Military Review (journal)/Definition
- Military academy/Definition
- Military working dog interrogation techniques/Definition
- Military-Industrial Complex/Definition
- Millimetre/Definition
- Milling machine/Definition
- Milrinone/Definition
- Milton Viorst/Definition
- Mine (siege)/Definition
- Mineichi Koga/Definition
- Minerva/Definition
- Minister (government)/Definition
- Ministerialamt/Definition
- Minneapolis, Minnesota/Definition
- Minol/Definition
- Minoru Genda/Definition
- Minos/Definition
- Minotaur/Definition
- Mir Mohammed/Definition
- Mira Sucharov/Definition
- Mirage 2000/Definition
- Mirage 2000-5/Definition
- Mirage 2000-D/Definition
- Mirage 2000-N/Definition
- Misao Kawai/Definition
- Mishkat al-Moumin/Definition
- Misogyny/Definition
- Mission-oriented protective posture/Definition
- Misspelling/Definition
- Mitch Daniels/Definition
- Mitch McConnell/Definition
- Mitchel Kugler/Definition
- Mitchell Bard/Definition
- Mitchell Reiss/Definition
- Mitsubishi A6M Zero/Definition
- Mitsumasa Yonai/Definition
- Mixed economy/Definition
- Mobile Force (Leyte)/Definition
- Modal realism/Definition
- Model (construction)/Definition
- Moderation (philosophy)/Definition
- Modernization (cultural)/Definition
- Mohamed Hussein Tantawi/Definition
- Mohammad Akhund/Definition
- Mohammad Nabi Mohammadi/Definition
- Mohammad Rahmani/Definition
- Mohammad Rasul/Definition
- Mohammed Atef/Definition
- Mohammed Atta/Definition
- Mohammed Khalil/Definition
- Mohammed Najibullah/Definition
- Mohammed Qasim Fahim/Definition
- Moheeb Murray/Definition
- Moisin-Nagant/Definition
- Moisés Naím/Definition
- Molecular biology/Definition
- Molecular biophysics/Definition
- Molotov Mitchell/Definition
- Mona Zulficar/Definition
- Monasticism/Definition
- Monetary base/Definition
- Monetisation (of public debt)/Definition
- Money market/Definition
- Monica Crowley/Definition
- Monobactams/Definition
- Monopropellant/Definition
- Monster/Definition
- Montana-class/Definition
- Montevideo/Definition
- Mood/Definition
- Mood disorder/Definition
- Moody Publishers/Definition
- Moral Majority/Definition
- Moral theology/Definition
- Moros y Cristianos/Definition
- Morphine/Definition
- Morphogenesis/Definition
- Morris Amitay/Definition
- Morris worm/Definition
- Mortimer Zuckerman/Definition
- Morton Blackwell/Definition
- Morton Halperin/Definition
- Morton Klein/Definition
- Moshe Arad/Definition
- Mother/Definition
- Motion in limine/Definition
- Motorcycle/Definition
- Motorola 68000/Definition
- Mount Olympus/Definition
- Mousa Abu Marzook/Definition
- Moustapha Niasse/Definition
- Movement of the Popular Participation/Definition
- Moxalactam/Definition
- Muhammad Atef/Definition
- Mujtahid/Definition
- Mullah/Definition
- Mullah Jalil/Definition
- Multicore processor/Definition
- Multiple Round Simultaneous Impact/Definition
- Multiple interrogator interrogation techniques/Definition
- Multiple personality disorder/Definition
- Multipotent stem cell/Definition
- Multiprocessing/Definition
- Multipurpose Internet Mail Extensions (MIME)/Definition
- Multispectral scanning/Definition
- Munchausen syndrome/Definition
- Munchausen syndrome by proxy/Definition
- Mundell-Fleming theorem/Definition
- Muneer Fareed/Definition
- Muqawamma/Definition
- Muscle/Definition
- Musicology/Definition
- Musketeer/Definition
- Muslim Public Affairs Council/Definition
- Mustafa Ahmad al-Hawsawi/Definition
- Mutual UFO Network/Definition
- Muzammil Ahmed/Definition
- Muzammil Siddiqi/Definition
- Mya-4/Definition
- Myelination/Definition
- Myeloid progenitor cell/Definition
- Myoblast/Definition
- Myocardial ischemia/Definition
- Myrtilos/Definition
- Mythology/Definition
- NAIRU/Definition
- NATO Chief of Staff/Definition
- NMEA 0183/Definition
- NOx/Definition
- NTO (explosive)/Definition
- Nabil Sadoun/Definition
- Nader Afshar/Definition
- Nafis Sadik/Definition
- Nagasankirtan/Definition
- Nagmashot/Definition
- Nagoya/Definition
- Nahida Sherman/Definition
- Nail (fastener)/Definition
- Najaf/Definition
- Naked CDS/Definition
- Names (words)/Definition
- Naming and Necessity/Definition
- Nancy Birdsall/Definition
- Nancy Kranich/Definition
- Nancy Leigh DeMoss/Definition
- Nancy Lubin/Definition
- Nancy Soderberg/Definition
- Nanometre/Definition
- Nanotechnology/Definition
- Napoleonic Wars/Definition
- Narcissus/Definition
- Narrow gauge/Definition
- Naruhito/Definition
- Nash equilibrium/Definition
- Nathan Deal/Definition
- Nathan Estruth/Definition
- Nathaniel Gorham/Definition
- National Alliance/Definition
- National Congress Party/Definition
- National Debt - Maastricht definition/Definition
- National Defense University/Definition
- National Intelligence Officer for Russia and Eurasia/Definition
- National Progressive League/Definition
- National Resistance Movement/Definition
- National Tax Limitation Committee/Definition
- National Training Center/Definition
- National income/Definition
- National security conservatism/Definition
- Nativ (journal)/Definition
- Natural gas-fired power plant/Definition
- Natural history/Definition
- Natural killer cell/Definition
- Natural rate of unemployment/Definition
- Natural science/Definition
- Natural theology/Definition
- Nature writing/Definition
- Natzweiler Concentration Camp/Definition
- Nauman Imami/Definition
- Naval Base San Diego/Definition
- Naval aviator/Definition
- Naveen Selvadurai/Definition
- Nawaf al-Hazmi/Definition
- Nawafal Hazmi/Definition
- Nazi sulfamilamide experiments/Definition
- Ncuti Gatwa/Definition
- Neal Boortz/Definition
- Near enemy/Definition
- Necrotizing fasciitis/Definition
- Negentropy/Definition
- Negotiable/Definition
- Neil Abercrombie/Definition
- Neoisolationism/Definition
- Neolauchea/Definition
- Neonatology/Definition
- Neoptolemus/Definition
- Neoteny/Definition
- Nerve/Definition
- Nerve agent/Definition
- Nerve cell body/Definition
- Nessos/Definition
- Netfires/Definition
- Network/Definition
- Neuengamme Concentration Camp/Definition
- Neural code/Definition
- Neurogenesis/Definition
- Neuroimaging software/Definition
- Neuroinformatics/Definition
- Neuromorphometry/Definition
- Neuropathology/Definition
- Neurophysiology/Definition
- Neuropsychopharmacology/Definition
- Neuroscience/Definition
- Neurosis/Definition
- Neurosurgery/Definition
- New Delhi/Definition
- New England cuisine/Definition
- New Englishes/Definition
- New France in the Ohio River Valley/Definition
- New Guinea/Definition
- New Orleans-class/Definition
- New Republic/Definition
- Newark Liberty International Airport/Definition
- Newly Independent States/Definition
- Newt Gingrich/Definition
- Ngozi Okonjo-Iweala/Definition
- Nicholas Gilman/Definition
- Nicholas Kristof/Definition
- Nicholas Murray Butler/Definition
- Nicholas Nash Eberstadt/Definition
- Nicholas Veliotes/Definition
- Nicholas de B. Katzenbach/Definition
- Nick Griffin/Definition
- Nicolas Sarkozy/Definition
- Nicotinamide adenine dinucleotide/Definition
- Nihad Awad/Definition
- Nike Irvin/Definition
- Niki Tsongas/Definition
- Nikki Freud/Definition
- Nina Hartley/Definition
- Nina Shea/Definition
- Ninth Amendment to the United States Constitution/Definition
- Nita Lowey/Definition
- Nitroaromatics/Definition
- Nitrogen tetroxide/Definition
- Nitroguanidine/Definition
- Niue/Definition
- Noam Dolgin/Definition
- Nobel Prize in Chemistry/Definition
- Nobel Prize in Economics/Definition
- Nobel Prize in Literature/Definition
- Nobuyuki Abe/Definition
- Nofollow/Definition
- Noise (information theory)/Definition
- Noise traders/Definition
- Nomi Colton-Max/Definition
- Non-Hodgkin's lymphoma/Definition
- Non-accelerating-inflation rate of unemployment/Definition
- Non-profit organization/Definition
- Noncombatant evacuation operation/Definition
- Nongovernmental board/Definition
- Nongovernmental sector/Definition
- Nonie Darwish/Definition
- Nonkinetic fires/Definition
- Nonpartisan/Definition
- Nonprofit sector/Definition
- Noosheen Hashemi/Definition
- Nootropic/Definition
- Norepinephrine/Definition
- Norfolk/Definition
- Normal saline/Definition
- Norman Augustine/Definition
- Norman Gelman/Definition
- Norman Ornstein/Definition
- North Carolina-class/Definition
- North Germanic languages/Definition
- North Yorkshire/Definition
- Northampton-class/Definition
- Northern Iraq Liaison Element/Definition
- Northwest Airlines Flight 253/Definition
- Norwich/Definition
- Notochord/Definition
- Nouns and number/Definition
- Novation/Definition
- Nuclear physics/Definition
- Nucleobase/Definition
- Nucleus (cell)/Definition
- Number of the Beast (book)/Definition
- NumbersUSA/Definition
- Nupedia/Definition
- Nutrition/Definition
- Nutty (Royal Navy)/Definition
- Nutty (cooking)/Definition
- Nutty (emotional state)/Definition
- Nyala/Definition
- Nydia Velazquez/Definition
- Nymph (mythology)/Definition
- OECD countries/Definition
- ONYX satellite/Definition
- OODA loop/Definition
- OP-20G/Definition
- ORPO/Definition
- Oberkommando der Marine/Definition
- Oberkommando der Wehrmacht/Definition
- Oberkommando des Heeres/Definition
- Objectivism/Definition
- Obsessive compulsive disorder/Definition
- Occupational medicine/Definition
- Occupying power/Definition
- Ocean/Definition
- Oceanos/Definition
- Odilo Globocnik/Definition
- Oedipus the King/Definition
- Office of Policy Coordination/Definition
- Office of Science and Technology Policy/Definition
- Ogden Air Logistics Center/Definition
- Oil (fuel)/Definition
- Oil-fired power plant/Definition
- Okhrana/Definition
- Okinawa, Okinawa/Definition
- Okun curve/Definition
- Okun's law/Definition
- Oleh/Definition
- Oliver Ellsworth/Definition
- Olympia/Definition
- Olympia (film)/Definition
- Olympia Snowe/Definition
- Olympians/Definition
- Omaha, Nebraska/Definition
- Omaha-class/Definition
- Omar & Mohammed Fadhil/Definition
- Omar Ahmad/Definition
- Omar al-Bashir/Definition
- Omdurman/Definition
- Omitted-variable bias/Definition
- On Liberty/Definition
- On the Plurality of Worlds/Definition
- One Direction/Definition
- Ontogenesis/Definition
- Ontogenetic column/Definition
- Ontology (software)/Definition
- Open Access Day/Definition
- Open Access Week/Definition
- Open Knowledge Foundation/Definition
- Open Rights Group/Definition
- Open Science Summit/Definition
- Open content/Definition
- Open data/Definition
- Open education/Definition
- Open ended fund/Definition
- Open governance/Definition
- Open innovation/Definition
- Open knowledge/Definition
- Open license/Definition
- Open market operation/Definition
- Open market operations/Definition
- Open notebook/Definition
- Open notebook science/Definition
- Open peer review/Definition
- Open-access publisher/Definition
- Open-access publishing/Definition
- OpenID/Definition
- OpenWetWare/Definition
- Operating expense/Definition
- Operation ANACONDA (Afghanistan War 2001-)/Definition
- Operation ANACONDA (American Civil War)/Definition
- Operation ASSURED RESPONSE/Definition
- Operation Acid Gambit/Definition
- Operation Borodino/Definition
- Operation CORONET/Definition
- Operation Dumbo Drop/Definition
- Operation ELDORADO CANYON/Definition
- Operation ENDURING FREEDOM/Definition
- Operation GOTHIC SERPENT/Definition
- Operation HAILSTONE/Definition
- Operation Hydra/Definition
- Operation IGLOO WHITE/Definition
- Operation JUBILEE/Definition
- Operation MINCEMEAT/Definition
- Operation MONGOOSE/Definition
- Operation Mercury/Definition
- Operation NORTHERN WATCH/Definition
- Operation Neptune/Definition
- Operation Restore Hope/Definition
- Operation SHINING EXPRESS/Definition
- Operation SOUTHERN WATCH/Definition
- Operation Telic/Definition
- Opioid anesthetic/Definition
- Opium Wars/Definition
- Opthalmology/Definition
- Optic nerve glioma/Definition
- Optics/Definition
- Optoisolator/Definition
- Oral drug administration/Definition
- Orange (colour)/Definition
- Orbis/Definition
- Order (organization)/Definition
- Ordinary share/Definition
- Ordnance/Definition
- Oregon City-class/Definition
- Organ biophysics/Definition
- Organisation for Security and Cooperation in Europe/Definition
- Organization for Human Brain Mapping/Definition
- Ori Nir/Definition
- Original intent/Definition
- Original sin (economics)/Definition
- Originate and distribute/Definition
- Oriskany-class/Definition
- Orly Taitz/Definition
- Orpheus/Definition
- Orrin Hatch/Definition
- Orthopedics/Definition
- Osamu Tezuka/Definition
- Osgood-Schlatter disease/Definition
- Oskar Heines/Definition
- Oskar Schroeder/Definition
- Osteitis deformans/Definition
- Osteochondrosis/Definition
- Osteoclast/Definition
- Osteogenesis imperfecta/Definition
- Otto Hofmann/Definition
- Otto Ohlendorf/Definition
- Otto Rasch/Definition
- Otto Schniewind/Definition
- Otto Schwarzenberger/Definition
- Our Lady of Walsingham/Definition
- Ouranos/Definition
- Outer Mongolia/Definition
- Output gap/Definition
- Over-the-counter market/Definition
- Over-the-horizon/Definition
- Overhead power line/Definition
- Overnight index rate/Definition
- Overnight index swap/Definition
- Oxfordshire/Definition
- Oxidation potential/Definition
- Oxidative phosphorylation/Definition
- Oxidoreductases/Definition
- Oxygen firing power plant/Definition
- P-38 (Vietnam War)/Definition
- P-38 Lightning/Definition
- P-38 pistol/Definition
- P-700 Granit/Definition
- P-versus-NP problem/Definition
- P. George Tryfiates/Definition
- P.J. Patterson/Definition
- PAVEWAY I/Definition
- PAVEWAY II/Definition
- PAVEWAY III/Definition
- PBX-9010/Definition
- PBX-9011/Definition
- PBX-9404/Definition
- PBX-9501/Definition
- PBXN-106/Definition
- PBXN-107/Definition
- PBXN-109/Definition
- PBXN-8/Definition
- PETN/Definition
- PIIGS/Definition
- PINNACLE OPREP 3 BROKEN ARROW/Definition
- PINNACLE OPREP 3 NUCFLASH/Definition
- PINNACLE-EMERGENCY DISABLEMENT/Definition
- PINNACLE-EMERGENCY EVACUATION/Definition
- PLoS Currents/Definition
- PLoS ONE/Definition
- POPPY satellite/Definition
- PRC-8/Definition
- PRC-9/Definition
- PSN-13/Definition
- PURPLE machine/Definition
- PVS-7/Definition
- PYQ-6/Definition
- Pablo Picasso/Definition
- Pachystele/Definition
- Paint/Definition
- Pakistan Muslim League-Nawaz/Definition
- Pakistan People's Party/Definition
- Pakora/Definition
- Palaeontology/Definition
- Palestine (region)/Definition
- Palestine Solidarity Committee/Definition
- Pan (mythology)/Definition
- Panamax/Definition
- Pancreaticoduodenectomy/Definition
- Pandora (mythology)/Definition
- Panic (banking)/Definition
- Panzergruppe/Definition
- Papers (software)/Definition
- Par value/Definition
- Paradigm/Definition
- Paramedic/Definition
- Parameters (journal)/Definition
- Paraneoplastic endocrine syndromes/Definition
- Parasite/Definition
- Parasitism/Definition
- Parasitology/Definition
- Pareto efficiency/Definition
- Pareto-efficient/Definition
- Paris Club/Definition
- Paris Nomina Anatomica/Definition
- Parliament/Definition
- Parliament of Canada/Definition
- Partai Komunis Indonesia/Definition
- Participation rate/Definition
- Particulates/Definition
- Pascal Boyer/Definition
- Pasiphae/Definition
- Passive protection (naval)/Definition
- Passive radar homing/Definition
- Pat Fagan/Definition
- Pat Roberts/Definition
- Pat Robertson/Definition
- Pat Trueman/Definition
- Paternalism/Definition
- Pathological diagnosis/Definition
- Patrice Lewis/Definition
- Patricia Friend/Definition
- Patricia Huntington/Definition
- Patricia McGowan Wald/Definition
- Patricia Roberts-Miller/Definition
- Patrick Clawson/Definition
- Patrick Fagan/Definition
- Patrick Garrity/Definition
- Patrick Kennedy/Definition
- Patrick Leahy/Definition
- Patrick Mulloy/Definition
- Patrick Murphy/Definition
- Patty Murray/Definition
- Paul Berg/Definition
- Paul Blobel/Definition
- Paul Broun/Definition
- Paul Cerjan/Definition
- Paul Dickler/Definition
- Paul Dukas/Definition
- Paul Ely/Definition
- Paul Heer/Definition
- Paul Henze/Definition
- Paul Hughes/Definition
- Paul Kirk/Definition
- Paul Martin/Definition
- Paul O'Neill/Definition
- Paul Orfanedes/Definition
- Paul Rostock/Definition
- Paul Selva/Definition
- Paul Stares/Definition
- Paul Vallely/Definition
- Paul de Kruif/Definition
- Paul von Hase/Definition
- Paula Dobriansky/Definition
- Paula Stern/Definition
- Pauline Baker/Definition
- Pavel Young/Definition
- Pedagogy/Definition
- Pedro Pierluisi/Definition
- Peer Review Radio/Definition
- Peer to peer file sharing/Definition
- Peer to peer lending/Definition
- Pejorative/Definition
- Peleus/Definition
- Pelops/Definition
- Peneleus/Definition
- Penicillinase/Definition
- Pensacola-class/Definition
- Pentheus/Definition
- Penthouse (magazine)/Definition
- People's Liberation Army Air Force (China)/Definition
- Peptidoglycan/Definition
- Percent/Definition
- Perception/Definition
- Percussion (music)/Definition
- Perfect competition/Definition
- Peritrichous flagella/Definition
- Permanent income hypothesis/Definition
- Persephone/Definition
- Person/Definition
- Personal Genome Project/Definition
- Personification/Definition
- Perth (Scotland)/Definition
- Peshmerga/Definition
- Pete Domenici/Definition
- Pete King/Definition
- Pete Peterson/Definition
- Pete Sessions/Definition
- Pete Stark/Definition
- Pete Winn/Definition
- Peter Ackerman/Definition
- Peter B. Lewis/Definition
- Peter Bechtold/Definition
- Peter Beck/Definition
- Peter Beinart/Definition
- Peter Binfield/Definition
- Peter Boyer/Definition
- Peter Brookes/Definition
- Peter Chiarelli/Definition
- Peter D. Zimmerman/Definition
- Peter Edelman/Definition
- Peter Higgs/Definition
- Peter Mansoor/Definition
- Peter Murray-Rust/Definition
- Peter Pace/Definition
- Peter Raven-Hansen/Definition
- Peter Reiling/Definition
- Peter Rodman/Definition
- Peter Rosenblatt/Definition
- Peter Schramm/Definition
- Peter Schweizer/Definition
- Peter Videnieks/Definition
- Peter Welch/Definition
- Peter Yorck von Wartenburg/Definition
- Peter Zimmerman/Definition
- Peter de la Billiere/Definition
- Phaedra/Definition
- Phaethon/Definition
- Pharos/Definition
- Phase (archaeology)/Definition
- Phase (astronomy)/Definition
- Phase (cell biology)/Definition
- Phase (chemistry)/Definition
- Phase (signal)/Definition
- Phebe Marr/Definition
- Philae (island)/Definition
- Philae obelisk/Definition
- Philip Bobbitt/Definition
- Philip K. Dick/Definition
- Philip Rudder/Definition
- Philippines campaigns in World War Two/Definition
- Phillip Dennis/Definition
- Phillips curve/Definition
- Phillis Wheatley/Definition
- Philoctetes/Definition
- Phoebus/Definition
- Phonics/Definition
- Phorm/Definition
- Phosphate-buffered saline/Definition
- Phospholipid/Definition
- Phosphor/Definition
- Photobiophysics/Definition
- Photolysis/Definition
- Photomultiplier tube/Definition
- Photosynthetic pigment/Definition
- Photosystem II/Definition
- Phototropism/Definition
- Phyllis Kaminsky/Definition
- Phyllis Oakley/Definition
- Phyllis Schlafly/Definition
- Phyllodes tumor/Definition
- Phyllotaxis/Definition
- Phylogenetic tree/Definition
- Physical evidence/Definition
- Physical health/Definition
- Physician assistant/Definition
- Pia mater/Definition
- Pial surface/Definition
- Picatinny Arsenal/Definition
- Picometre/Definition
- Picric acid/Definition
- Pierre Lellouche/Definition
- Pierre Trudeau/Definition
- Pieter Camper/Definition
- Pietism/Definition
- Pillar (EU)/Definition
- Pine Bluff Arsenal/Definition
- Piratenpad/Definition
- Piratepad/Definition
- Pirates of the Caribbean (attraction)/Definition
- Pirates of the Caribbean (franchise)/Definition
- Pirithous/Definition
- Pitch perception/Definition
- Pituitary dwarfism/Definition
- Pixel/Definition
- Plainclothes/Definition
- Plaintiff/Definition
- Plan Bodyguard/Definition
- Plant tissue culture/Definition
- Plasma (biology)/Definition
- Plastic explosives/Definition
- Platte River/Definition
- Platyglottis/Definition
- Playboy (magazine)/Definition
- Pleasure/Definition
- Plumbatol/Definition
- Pluripotent stem cell/Definition
- Pneumatology/Definition
- Pneumoencephalography/Definition
- Pneumonology/Definition
- Podalirius/Definition
- Poisonous mushroom/Definition
- Polar Operational Environmental Satellite/Definition
- Polar question/Definition
- Polarization mode dispersion/Definition
- Pole (geography)/Definition
- Pole (person)/Definition
- Political movement/Definition
- Political officer/Definition
- Pollution/Definition
- Polyglott/Definition
- Polygonal mesh/Definition
- Polyisobutylene/Definition
- Polymorphonuclear leukocyte/Definition
- Polypoetes/Definition
- Polyxena/Definition
- Pontos/Definition
- Poppy (opium)/Definition
- Poppy (satellite)/Definition
- Popular Congress Party/Definition
- Popular Front for the Liberation of Palestine-General Command/Definition
- Population biology/Definition
- Port 110/Definition
- Port 143/Definition
- Port 25/Definition
- Port Sudan/Definition
- Porter-class/Definition
- Portfolio/Definition
- Portfolio (finance)/Definition
- Portfolio insurance/Definition
- Portland-class/Definition
- Poseidon (mythology)/Definition
- Position (finance)/Definition
- Position (location)/Definition
- Positive feedback/Definition
- Positron emission tomography/Definition
- Posse Comitatus Act/Definition
- Post-conviction relief/Definition
- Post-it note/Definition
- Post-publication peer review/Definition
- Pound (weight)/Definition
- Pour le Merite/Definition
- Poverty elimination/Definition
- Poverty trap/Definition
- Power projection/Definition
- Practical theology/Definition
- Pre-Budget Report/Definition
- Pre-Trib Research Center/Definition
- Precautionary motive/Definition
- Precision Attack Missile/Definition
- Precursor neuron/Definition
- Precursor protein/Definition
- Prediction/Definition
- Preemption (military)/Definition
- Preexcitation syndrome/Definition
- Preference share/Definition
- Premsa/Definition
- President of France/Definition
- President of Iran/Definition
- President of Iraq/Definition
- President of Israel/Definition
- President of Mauritius/Definition
- President of Pakistan/Definition
- President of Paraguay/Definition
- President of Venezuela/Definition
- President of Yemen/Definition
- President of the Philippines/Definition
- President pro tempore of the Senate/Definition
- Press release/Definition
- Prevent defense/Definition
- Preventive war/Definition
- Price flexibility/Definition
- Price flexiblity/Definition
- Primary budget balance/Definition
- Primary budget deficit/Definition
- Primary explosive/Definition
- Primary market/Definition
- Primary source/Definition
- Prime Minister of Israel/Definition
- Prime Minister of Mauritius/Definition
- Prime Minister of Pakistan/Definition
- Prime rate/Definition
- Primer (ammunition)/Definition
- Prince (musician)/Definition
- Prince (title)/Definition
- Prince El Hassan bin Talal of Jordan/Definition
- Prince George of Wales/Definition
- Princess/Definition
- Princess Charlotte of Wales/Definition
- Princeton Lyman/Definition
- Principal (finance)/Definition
- Principles and Practices of Medicine/Definition
- Principles for Open Data in Science/Definition
- Print encyclopedia/Definition
- Pripyat/Definition
- Privateer/Definition
- Probability blindness/Definition
- Probability theory/Definition
- Process theology/Definition
- Procrastination/Definition
- Procreation/Definition
- Procrustes/Definition
- Procyclical/Definition
- Product (chemistry)/Definition
- Product (economics)/Definition
- Product (mathematics)/Definition
- Production possibility frontier/Definition
- Productive efficiency/Definition
- Program (culture)/Definition
- Progressive Policy Institute/Definition
- Prohormone convertase enzymes/Definition
- Project 949 Granit-class/Definition
- Project WHITE STAR/Definition
- Prometheus/Definition
- Proportional aerodynamic control/Definition
- Prosody (linguistics)/Definition
- Prosopagnosia/Definition
- Protamine sulfate/Definition
- Protection/Definition
- Protector Remote Weapons Station/Definition
- Protector of Bohemia and Moravia/Definition
- Proteome/Definition
- Proteus/Definition
- Protozoa/Definition
- Proximal interphalangeal joint/Definition
- Prudence Fields/Definition
- Pruritis/Definition
- Pseudohexadesmia/Definition
- Pseudonym/Definition
- Psychophysiology/Definition
- Public Broadcasting Service/Definition
- Public Library of Science/Definition
- Public choice theory/Definition
- Public health/Definition
- Public peer review/Definition
- Public sector/Definition
- Public sector information/Definition
- Publisher/Definition
- Publishing house/Definition
- Pueblo, Colorado/Definition
- Puerto Rico/Definition
- Puff, the Magic Dragon (aircraft)/Definition
- Puff, the Magic Dragon (song)/Definition
- Puiseaux series/Definition
- Pulmonary alveoli/Definition
- Puma (combat engineering vehicle)/Definition
- Punjab Province/Definition
- Purificacion V. Quisumbing/Definition
- Pyramus/Definition
- Pyrrha/Definition
- Python (mythology)/Definition
- PzH 2000 howitzer/Definition
- Q-ship/Definition
- Qali-i-Jangi/Definition
- Qari Talha/Definition
- Qasim Ahmed/Definition
- Qat/Definition
- Quack (health care)/Definition
- Quack (sound)/Definition
- Qualified-majority/Definition
- Qualitative easing/Definition
- Quantitative easing/Definition
- Quarrel (interpersonal)/Definition
- Quarrel (weaponry)/Definition
- Qudratullah Jamal/Definition
- Question/Definition
- Quota/Definition
- Qusay Hussein/Definition
- R. Emmett Tyrrell/Definition
- R. Keith Elliott/Definition
- R. Nicholas Burns/Definition
- RAND Corporation/Definition
- RAST (helicopter)/Definition
- RAST (medicine)/Definition
- RC-135 family aircraft/Definition
- RDS-2 (nuclear weapon)/Definition
- RDS-37 (nuclear weapon)/Definition
- RHYOLITE satellite/Definition
- RIM-66 Standard SM-1/Definition
- RIM-67 NTU versions/Definition
- RIM-67 Standard SM-1/Definition
- RIM-67 Terrier upgrade/Definition
- RJ45/Definition
- ROCKSTARS (Iraq War)/Definition
- RSS Persistence/Definition
- RU-486/Definition
- Rachel Abrams/Definition
- Rachel Bronson/Definition
- Rachel Ehrenfeld/Definition
- Rachel Neuwirth/Definition
- Radiation biophysics/Definition
- Radiofrequency catheter ablation/Definition
- Radiometric resolution/Definition
- Radiosurgery/Definition
- Radius (anatomy)/Definition
- Radius (geometry)/Definition
- Rafael Bardají/Definition
- Rahm Emanuel/Definition
- Raisin/Definition
- Ralph Bunche, Jr./Definition
- Ralph Buultjens/Definition
- Ralph Crosby/Definition
- Ralph Waldo Emerson/Definition
- Ram (biology)/Definition
- Ram (sports)/Definition
- Ramon Magsaysay/Definition
- Ramonia/Definition
- Ran Baratz/Definition
- Ran HaCohen/Definition
- Rand Beers/Definition
- Randall Larsen/Definition
- Random walk (finance)/Definition
- Randy Barnett/Definition
- Randy Neugebauer/Definition
- Randy Schriver/Definition
- Rapture/Definition
- Raster image/Definition
- Rattlesnakes/Definition
- Ray Anderson/Definition
- Ray Boshara/Definition
- Ray Comfort/Definition
- Ray Herrera/Definition
- Ray LaHood/Definition
- Ray Mabus/Definition
- Ray McGovern/Definition
- Raymond Close/Definition
- Raymond Garthoff/Definition
- Raymond Ibrahim/Definition
- Real Instituto Elcano/Definition
- Really Simple Syndication/Definition
- Realpolitik/Definition
- Rebecca Erbelding/Definition
- Rebecca Hagelin/Definition
- Rebecca Rimel/Definition
- Recapitalisation (banking)/Definition
- Recep Tayyip Erdogan/Definition
- Recessive/Definition
- Recovery Assist, Secure and Traverse/Definition
- Recovery rate (finance)/Definition
- Recreational therapy/Definition
- Red/Definition
- Red Beard (nuclear weapon)/Definition
- Red Planet/Definition
- Red Snow (nuclear weapon)/Definition
- Redemption yield/Definition
- Redstone Arsenal/Definition
- Reel (dance)/Definition
- Reference work/Definition
- Referendum/Definition
- Reflection (physics)/Definition
- Reflex/Definition
- Reformism (globalization)/Definition
- Regent Law School/Definition
- Region of interest/Definition
- Regional Cooperation Agreement on Anti-Piracy/Definition
- Registered Jack/Definition
- Registered private operating agency/Definition
- Regnery Publishing/Definition
- Regression analysis/Definition
- Reichenbachanthus/Definition
- Reichsheer/Definition
- Reichswehr/Definition
- Reinhard Gehlen/Definition
- Reinhold Hanisch/Definition
- Rejectionism (globalization)/Definition
- Relationship/Definition
- Release other than attack/Definition
- Remeshing/Definition
- Remifentanil/Definition
- Remote Direct Memory Access over Converged Ethernet/Definition
- Remus/Definition
- Reparto informazioni e sicurezza dello Stato maggiore della difesa/Definition
- Repetition interrogation techniques/Definition
- Replenishment ship/Definition
- Repository (publishing)/Definition
- Representative agent assumption/Definition
- Representative democracy/Definition
- Representative government/Definition
- Reproduction (copyright)/Definition
- Republican In Name Only/Definition
- Republican Liberty Caucus/Definition
- Republican National Committtee/Definition
- Republican base/Definition
- Repurchase agreement/Definition
- Required rate of return/Definition
- Res publica (London)/Definition
- Res publica (New York City)/Definition
- Research 2.0/Definition
- Research article/Definition
- Research funding/Definition
- Research notebook/Definition
- Research proposal/Definition
- Researchblogging/Definition
- Researcher/Definition
- Reserve ratio/Definition
- Reserves (banking)/Definition
- Resolution (imaging)/Definition
- Resource/Definition
- Respect (noun)/Definition
- Respect (song)/Definition
- Respect Records/Definition
- Respect agenda/Definition
- Restocking/Definition
- Restructure (debt)/Definition
- Restructuring of debt/Definition
- Retraction (publishing)/Definition
- Reuben Munger/Definition
- Revealed preference/Definition
- Revenge/Definition
- Review article/Definition
- Rheia/Definition
- Rhythm (music)/Definition
- Rhythm perception/Definition
- Ribosome/Definition
- Ribozyme/Definition
- Ricardian equivalence/Definition
- Rich Boucher/Definition
- Rich Verma/Definition
- Richard Allen/Definition
- Richard B. Parker/Definition
- Richard Baehr/Definition
- Richard Baer/Definition
- Richard Barrett/Definition
- Richard Bassett/Definition
- Richard Ben-Veniste/Definition
- Richard Bissell/Definition
- Richard Burr/Definition
- Richard Burt/Definition
- Richard Butler (neo-Nazi)/Definition
- Richard Cronin/Definition
- Richard Danzig/Definition
- Richard Dobbs Spaight, Sr./Definition
- Richard Ebeling/Definition
- Richard Edelman/Definition
- Richard Epstein/Definition
- Richard Fairbanks/Definition
- Richard Falkenrath/Definition
- Richard Fink/Definition
- Richard Giordano/Definition
- Richard Gluecks/Definition
- Richard Goldstone/Definition
- Richard Gurnon/Definition
- Richard Hearney/Definition
- Richard Hunt/Definition
- Richard Lamm/Definition
- Richard Lawson/Definition
- Richard Levin/Definition
- Richard Lugar/Definition
- Richard M. Clarke/Definition
- Richard McCormack/Definition
- Richard Mellon Scaife/Definition
- Richard Mies/Definition
- Richard Myers/Definition
- Richard Neal (politician)/Definition
- Richard Parker (economist)/Definition
- Richard Pearlstone/Definition
- Richard Rahn/Definition
- Richard Salomon/Definition
- Richard Sanchez/Definition
- Richard Silverstein/Definition
- Richard Solomon/Definition
- Richard Trefry/Definition
- Richard Viguerie/Definition
- Richard Winfield/Definition
- Richmond, Virginia/Definition
- Rick Boucher/Definition
- Rick Larsen/Definition
- Rick Lynch/Definition
- Rick Moran/Definition
- Rick Santelli/Definition
- Rickettsiae/Definition
- Riddle/Definition
- Riding (parliamentary)/Definition
- Rihanna/Definition
- Riki Ellison/Definition
- Riksmål/Definition
- Risk aversion/Definition
- Risk premium/Definition
- Rita DiMartino/Definition
- Rita Hauser/Definition
- River/Definition
- Rob Andrews/Definition
- Rob Bishop/Definition
- Rob Stein/Definition
- Rob Wittman/Definition
- Rob de Wijk/Definition
- Robert Aderholt/Definition
- Robert Alt/Definition
- Robert Ames/Definition
- Robert Andrews/Definition
- Robert Bauman/Definition
- Robert Beauprez/Definition
- Robert Bell/Definition
- Robert Bennett/Definition
- Robert Blackwill/Definition
- Robert Book/Definition
- Robert Brady/Definition
- Robert Byrd/Definition
- Robert Casey/Definition
- Robert Chesney/Definition
- Robert Danin/Definition
- Robert Eaglet/Definition
- Robert Ferrell/Definition
- Robert Filippone/Definition
- Robert G. Gard, Jr./Definition
- Robert Ghormley/Definition
- Robert Herbold/Definition
- Robert Hotz/Definition
- Robert J. Stevens/Definition
- Robert Joseph/Definition
- Robert Kasten, Jr./Definition
- Robert Katz/Definition
- Robert Keeley/Definition
- Robert Knight/Definition
- Robert L. McClure/Definition
- Robert Lieber/Definition
- Robert Manning/Definition
- Robert McFarlane/Definition
- Robert Menendez/Definition
- Robert Monroe/Definition
- Robert Morris/Definition
- Robert O. Snelling Sr./Definition
- Robert Oakley/Definition
- Robert Owen/Definition
- Robert Pastor/Definition
- Robert Pelletreau/Definition
- Robert Perito/Definition
- Robert Pfaltzgraff/Definition
- Robert RisCassi/Definition
- Robert Rubin/Definition
- Robert Rummel/Definition
- Robert Schwarzwalder/Definition
- Robert Stacy McCain/Definition
- Robert Steel/Definition
- Robert Stumpf/Definition
- Robert W. Ash/Definition
- Robert Waters/Definition
- Robert Wexler/Definition
- Robert Wittman/Definition
- Robert Yates/Definition
- Robert Zoellick/Definition
- Roberta Cohen/Definition
- Roberta Eldred/Definition
- Roberta Wohlstetter/Definition
- Robin Cleveland/Definition
- Robin Harris/Definition
- Rochester, Minnesota/Definition
- Rock Island Arsenal/Definition
- Rocket-assisted projectile/Definition
- Roderick von Lipsey/Definition
- Rodney Alexander/Definition
- Roger Ferguson/Definition
- Roger Schultz/Definition
- Roger Sherman/Definition
- Roger Simon/Definition
- Roger Tamraz/Definition
- Roger Wicker/Definition
- Roger Wilkins/Definition
- Rolf Ekeus/Definition
- Roll-over/Definition
- Romberg's sign/Definition
- Romeo Dallaire Child Soldiers Initiative/Definition
- Romulus/Definition
- Ron Kind/Definition
- Ron Klein/Definition
- Ron Werber/Definition
- Ron Wilson/Definition
- Ron Wyden/Definition
- Ronald Dworkin/Definition
- Ronald L. Olson/Definition
- Ronald Lehman/Definition
- Ronald Pestritto/Definition
- Ronald Spiers/Definition
- Ronald Storrs/Definition
- Rootkit (computers)/Definition
- Ropa vieja/Definition
- Rosa DeLauro/Definition
- Roscoe Bartlett/Definition
- Rotator cuff/Definition
- Roughness (acoustics)/Definition
- Roughness (surface)/Definition
- Roux-en-Y anastomosis/Definition
- Roy Blunt/Definition
- Roy Moore/Definition
- Royal Australian Air Force/Definition
- Royal Copeland/Definition
- Royal Marines/Definition
- Royal Saudi Air Force/Definition
- RuSHA/Definition
- Rudolf Creutz/Definition
- Rudolf Scheide/Definition
- Rudy deLeon/Definition
- Rufus King/Definition
- Rufus Pollock/Definition
- Rule of one-half/Definition
- Run (banking)/Definition
- Rupert Murdoch/Definition
- Rush Holt/Definition
- Russ Carnahan/Definition
- Russ Feingold/Definition
- Russ Holdstein/Definition
- Russell Feingold/Definition
- Russell Hemenway/Definition
- Rusty Humphries/Definition
- Rusty Nail/Definition
- Ruth Bader Ginsburg/Definition
- Ruti Teitel/Definition
- Ryan Keenav/Definition
- S-1 (military staff)/Definition
- S-1 (weapon)/Definition
- S-3 Viking/Definition
- S. Jacob Scherr/Definition
- SAXON (software)/Definition
- SB2C Helldiver/Definition
- SCB-125/Definition
- SCB-27/Definition
- SDR/Definition
- SERE/Definition
- SGML/Definition
- SH-60B/Definition
- SH-60F/Definition
- SH-60J/Definition
- SMS Scharnhorst/Definition
- SQR-19/Definition
- SQS-53/Definition
- SS State/Definition
- SSQ-110/Definition
- SSQ-125/Definition
- SSQ-36/Definition
- SSQ-53/Definition
- SSQ-62/Definition
- SSQ-77/Definition
- Saar-class/Definition
- Sabine Freizer/Definition
- Sabri Sayari/Definition
- Sack of Troy/Definition
- Sacrifice/Definition
- Sacrifice ratio/Definition
- Sadia Shakir/Definition
- Sadiq al-Sadr/Definition
- Sadism/Definition
- Saima Siddiqui/Definition
- Saint/Definition
- Saint Paul, Minnesota/Definition
- Saleem Ali/Definition
- Salesforce.com/Definition
- Salim Ahmed Hamdan/Definition
- Sally Ride/Definition
- Salman Rushdie/Definition
- Salvatore F. Cambria/Definition
- Sam Brownback/Definition
- Sam Nunn/Definition
- Samantha Power/Definition
- Samaritan's dilemma/Definition
- Samarkand/Definition
- Sami Alrabaa/Definition
- Samuel B. Roberts (DE-413)/Definition
- Samuel Barber/Definition
- Samuel Berger/Definition
- Samuel Blumenfeld/Definition
- Samuel Crowther/Definition
- Samuel Huntington/Definition
- Samuel Lessey, Jr./Definition
- Samuel Lewis/Definition
- Samuel Locklear, III/Definition
- Samuel Norich/Definition
- Sanaa/Definition
- Sander Levin/Definition
- Sandra Day O'Connor/Definition
- Sandra Graves Rozanski/Definition
- Sandra Leavitt/Definition
- Sanford Bishop/Definition
- Sanity/Definition
- Santa Fe Independent School District v. Doe/Definition
- Sarah G. Epstein/Definition
- Sarah Sewall/Definition
- Sarwat Husain/Definition
- Satyrs/Definition
- Sauerkraut/Definition
- Saul Alinsky/Definition
- Savannah (ecosystem)/Definition
- Savings ratio/Definition
- Saxon (person)/Definition
- Sayeret Matkal/Definition
- Sayeret makal/Definition
- Sayf al Adel/Definition
- Sayyid/Definition
- Sayyid Ahmad Gailani/Definition
- Schengen Agreement/Definition
- Schizont/Definition
- Scholar/Definition
- Scholarly manuscript/Definition
- Scholarly wiki/Definition
- Scholarpedia/Definition
- Scholarship (method)/Definition
- School of Advanced Military Studies/Definition
- School of Medicine, Johns Hopkins University/Definition
- Science Commons/Definition
- Science Commons Symposium – Pacific Northwest/Definition
- Science blogging/Definition
- Science funding/Definition
- Science journalism/Definition
- Scientific article/Definition
- Scientific literature/Definition
- Scientific realism/Definition
- Scientific research/Definition
- Scientific research data/Definition
- Scientist/Definition
- Scintillating material/Definition
- Scintillometer/Definition
- Scots language/Definition
- Scott Allan/Definition
- Scott Garrett/Definition
- Scott Gration/Definition
- Scott Murphy/Definition
- Scottish English/Definition
- Scottish Gaelic language/Definition
- Scroll and Key/Definition
- Scythe/Definition
- Sea control/Definition
- Seamen/Definition
- Sean Wilentz/Definition
- Search friction/Definition
- Seasonal rhythms in energy balance/Definition
- Seawolf-class/Definition
- Sebestyén Gorka/Definition
- Second Battle of Ypres/Definition
- Second Chief Directorate/Definition
- Second Intifada/Definition
- Secondary explosive/Definition
- Secondary market/Definition
- Secondary source/Definition
- Secretary of War/Definition
- Secretary of the Army/Definition
- Secular Coalition for America/Definition
- Secularism/Definition
- Secularist/Definition
- Securities Markets Programme/Definition
- Securitisation/Definition
- Security (finance)/Definition
- Sega/Definition
- Seiner Majestät Schiff/Definition
- Self organization/Definition
- Self-determination (politics)/Definition
- Self-financing government investment/Definition
- Selling short/Definition
- Semele/Definition
- Semtex/Definition
- Semyon Budenny/Definition
- Sendai/Definition
- Sensory deprivation interrogation techniques/Definition
- Sentence (linguistics)/Definition
- Sentinel R1/Definition
- Sepak takraw/Definition
- Sepal/Definition
- Separate development/Definition
- Sergey Brin/Definition
- Serial killing/Definition
- Series (analysis)/Definition
- Series (lattice theory)/Definition
- Serum (blood)/Definition
- Services/Definition
- Services (economics)/Definition
- Sessilibulbum/Definition
- Seth Cropsey/Definition
- Seth Leibsohn/Definition
- Settlement (finance)/Definition
- Seventeenth Amendment to the U.S. Constitution/Definition
- Seventh Amendment to the United States Constitution/Definition
- Sexual selection/Definition
- Seymour Hersh/Definition
- Shadow banking system/Definition
- Shadow minister/Definition
- Shaker Elsayed/Definition
- Shane Osborn/Definition
- Shannon Brownlee/Definition
- Shannon Demos/Definition
- Shape classification/Definition
- Shape description/Definition
- Share (finance)/Definition
- Shari Rendall/Definition
- Sharman Altshuler/Definition
- Sharon Mitchell/Definition
- Sharpe ratio/Definition
- Sharron Angle/Definition
- Shaukat Aziz/Definition
- Shaul Arieli/Definition
- Sheberghan/Definition
- Sheikh Sharif Sheikh Ahmed/Definition
- Sheila Coronel/Definition
- Sheila Widnall/Definition
- Sheldon Whitehouse/Definition
- Shell (artillery)/Definition
- Shelley Berkley/Definition
- Shelley Hearne/Definition
- Shelley Moore Capito/Definition
- Sherrod Brown/Definition
- Shi'ite/Definition
- Shibam/Definition
- Shibley Telhami/Definition
- Shigeki Sakamoto/Definition
- Shin Bet/Definition
- Shin Beth/Definition
- Shinano-class/Definition
- Ships Taken Up From Trade/Definition
- Shipyard/Definition
- Shiqiu Chen/Definition
- Shirdi Sai Baba/Definition
- Shirk/Definition
- Shirley Hufstedler/Definition
- Shkval (torpedo)/Definition
- Shlomo Ben Ami/Definition
- Shlomo Ben-Ami/Definition
- Shlomo Gazit/Definition
- Shock (economics)/Definition
- Shogi/Definition
- Short position/Definition
- Shortest Path First/Definition
- Shrine/Definition
- Shropshire/Definition
- Shunga/Definition
- Shura/Definition
- Sibling/Definition
- Sicily/Definition
- Sickle/Definition
- Sideroblastic anemia/Definition
- Sidney Altman/Definition
- Sidney Hook/Definition
- Sidney Jones/Definition
- Sidney Topol/Definition
- Siegfried Handloser/Definition
- Siegfried Ruff/Definition
- Sierra Leone/Definition
- Sigmund Rascher/Definition
- Signals Intelligence Service/Definition
- Silence (acoustic)/Definition
- Silence interrogation techniques/Definition
- Silver Star/Definition
- Silversmith/Definition
- Silvestre Reyes/Definition
- Simmy Ziv-El/Definition
- Simon Darby/Definition
- Sims-class/Definition
- Sinclair Lewis/Definition
- Sindh Province/Definition
- Single-base propellant/Definition
- Single-blind peer review/Definition
- Sinis/Definition
- Sinner/Definition
- Sinoatrial node/Definition
- Sipah-e-Sahaba Pakistan/Definition
- Sister/Definition
- Sisters of Mercy (order)/Definition
- Sisyphos/Definition
- Sites of Special Scientific Interest/Definition
- Sixteenth Amendment to the U.S. Constitution/Definition
- Sixth Amendment to the United States Constitution/Definition
- Sixth United States Army/Definition
- Size (general)/Definition
- Skeet (submunition)/Definition
- Skeleton/Definition
- Skewness/Definition
- Skipjack (boat)/Definition
- Skull/Definition
- Skull and Bones/Definition
- Skull and Bones Society/Definition
- Slade Gorton/Definition
- Slammer worm/Definition
- Slater Bakhtavar/Definition
- Sleep Adjustment interrogation techniques/Definition
- Small intestine/Definition
- Small state/Definition
- Smalltalk/Definition
- Smith/Definition
- Smith v. Maryland/Definition
- Smoke/Definition
- Snowball (cockatoo)/Definition
- Social insurance/Definition
- Social justice/Definition
- Social network/Definition
- Social networking service/Definition
- Social norm/Definition
- Socialist Party (Uruguay)/Definition
- Society (popular culture)/Definition
- Society (sociology)/Definition
- Society of Biblical Literature/Definition
- Society of Christian Philosophers/Definition
- Sodium iodide/Definition
- Sodium nitroprusside/Definition
- Soemu Toyoda/Definition
- Soft-core pornography/Definition
- Software installation/Definition
- Soil/Definition
- Solar power plant/Definition
- Solaris/Definition
- Solid fuel rocket/Definition
- Solid-state radiation detector/Definition
- Solomon Ortiz/Definition
- Solution Unsatisfactory (short story)/Definition
- Somers-class/Definition
- Somerset/Definition
- Son/Definition
- Son Tay raid/Definition
- Soner Cagaptay/Definition
- Sonnets to Orpheus/Definition
- Sophocles/Definition
- Sophronitella/Definition
- Soroku Suzuki/Definition
- Soros Fund Management/Definition
- Sortie/Definition
- Soryu-class/Definition
- Soteriology/Definition
- South Dakota-class/Definition
- South Pacific (region)/Definition
- Southeastern Trains/Definition
- Southern Africa/Definition
- Southern District of New York/Definition
- Sovereign spread/Definition
- Space (physics)/Definition
- Space surveillance/Definition
- Spalling/Definition
- Sparta/Definition
- Spatial resolution/Definition
- Speaker (politics)/Definition
- Speaker of the House/Definition
- Speaker of the House of Representatives (U.S)/Definition
- Spearfish (torpedo)/Definition
- Special Guard/Definition
- Special Operations Command - Joint Forces Command/Definition
- Special Protection/Definition
- Special Republican Guard/Definition
- Special Security Office/Definition
- Special drawing right/Definition
- Special nuclear material/Definition
- Speciation/Definition
- Species (chemistry)/Definition
- Specific gravity (liquid)/Definition
- Spectral resolution/Definition
- Speculative motive/Definition
- Speech (phonetics)/Definition
- Speech therapy/Definition
- Spelling variant/Definition
- Spencer Abraham/Definition
- Spencerian penmanship/Definition
- Spherical mapping/Definition
- Spherical topology/Definition
- Sphinx/Definition
- Spillover/Definition
- Spin (politics)/Definition
- Spinal muscular atrophy/Definition
- Spot market/Definition
- Spread/Definition
- Spree killing/Definition
- Springer Science+Business Media/Definition
- Spruance-class/Definition
- Squamous cell carcinoma/Definition
- Squid (software)/Definition
- St. Laurent-class/Definition
- St. Louis-class/Definition
- Stability (economics)/Definition
- Stability and growth pact/Definition
- Staff college/Definition
- Stahlhelm/Definition
- Stan John/Definition
- Stand Up for America USA Project/Definition
- Standard English/Definition
- Standard gauge/Definition
- Standardised budget deficit/Definition
- Stanley Arkin/Definition
- Stapler (tool)/Definition
- Star Beast/Definition
- Star Parker/Definition
- Starman Jones/Definition
- State Children's Health Insurance Program/Definition
- State of Palestine/Definition
- Station (shiphandling)/Definition
- Steady state/Definition
- Steampunk/Definition
- Stendhal/Definition
- Stenocoryne/Definition
- Steny Hoyer/Definition
- Stephanie Hessler/Definition
- Stephen Biegun/Definition
- Stephen Brown/Definition
- Stephen Bryen/Definition
- Stephen Carter/Definition
- Stephen Crane/Definition
- Stephen Decatur/Definition
- Stephen Fausel/Definition
- Stephen Friedman/Definition
- Stephen Friend/Definition
- Stephen Gale/Definition
- Stephen Green/Definition
- Stephen Hadley/Definition
- Stephen Hanlon/Definition
- Stephen Krasner/Definition
- Stephen Lewis, Jr./Definition
- Stephen Lynch/Definition
- Stephen Rademaker/Definition
- Stephen Seche/Definition
- Stephen Xenakis/Definition
- Stephen Yates/Definition
- Stepson/Definition
- Sterilisation, monetary/Definition
- Steve Abbot/Definition
- Steve Austria/Definition
- Steve Biegun/Definition
- Steve Chabot/Definition
- Steve Cohen/Definition
- Steve Coll/Definition
- Steve Forbes/Definition
- Steve Israel/Definition
- Steve Maegdlin/Definition
- Steve Masters/Definition
- Steve Pearce/Definition
- Steve Scalise/Definition
- Steven Browning/Definition
- Steven Busby/Definition
- Steven C. Markoff/Definition
- Steven Cook/Definition
- Steven Ealy/Definition
- Steven Groves/Definition
- Steven Hancoff/Definition
- Steven Plaut/Definition
- Steven Spiegel/Definition
- Steven Weinberg (Jewish leader)/Definition
- Steven Weinberg (physicist)/Definition
- Sthelenus/Definition
- Stochastic/Definition
- Stock (finance)/Definition
- Stockbuilding cycle/Definition
- Stop the War Coalition/Definition
- Stop-loss/Definition
- Store Norske Leksikon/Definition
- Stormshadow missile/Definition
- Straight dynamite/Definition
- Stranger in a Strange Land/Definition
- Strategic Insights/Definition
- Strategic Studies Institute/Definition
- Strategic airlift/Definition
- Strategic mobility/Definition
- Strategic nuclear weapon/Definition
- Strategy/Definition
- StratusLive/Definition
- Stress (linguistics)/Definition
- Stress positions interrogation techniques/Definition
- Stress test (banking)/Definition
- Structural biology/Definition
- Structural deficit/Definition
- Structural unemployment/Definition
- Structured investment vehicle/Definition
- Stuart Appelbaum/Definition
- Stuart Eizenstat/Definition
- Stuart Herrington/Definition
- Stuart J. Roth/Definition
- Stud (fastener)/Definition
- Stuffing (cooking)/Definition
- Stymphalian birds/Definition
- Subcortex/Definition
- Subprime lending/Definition
- Subprime mortgage/Definition
- Subsidy/Definition
- Subsong/Definition
- Substitution effect/Definition
- Sue Gardner/Definition
- Sufentanil/Definition
- Suffolk/Definition
- Suffrage/Definition
- Suicide pact/Definition
- Sulaiman Abu Ghaith/Definition
- Sulcal depth/Definition
- Sulcal root/Definition
- Sulcus (anatomy)/Definition
- Sulcus (neuroanatomy)/Definition
- Sumitomo Saionji/Definition
- Summit meeting/Definition
- Sunni/Definition
- Super Nintendo Entertainment System/Definition
- Supercruise/Definition
- Superego/Definition
- Supply shock/Definition
- Supply shock (economics)/Definition
- Supply-side measures/Definition
- Suppressive fire/Definition
- Supreme Allied Commander Europe/Definition
- Supreme Allied Commander Transformation/Definition
- Supreme Commander Allied Powers/Definition
- Supreme Leader of Iran/Definition
- Surface mapping/Definition
- Surface mesh/Definition
- Surface reconstruction/Definition
- Surprise/Definition
- Surrey/Definition
- Susan A. Davis/Definition
- Susan Collins/Definition
- Susan Davis (Politician)/Definition
- Susan Davis (politician)/Definition
- Susan Davis (public relations)/Definition
- Susan Eisenhower/Definition
- Susan Haack/Definition
- Susan Levine/Definition
- Susan Marcille/Definition
- Susan Rice/Definition
- Susan Sherwin/Definition
- Susan Urahn/Definition
- Suspicious activity report/Definition
- Sustainability/Definition
- Sustainable science/Definition
- Suzanne E. Spaulding/Definition
- Suzanne Farver/Definition
- Suzanne Garment/Definition
- Suzanne Scholte/Definition
- Suzanne Woolsey/Definition
- Suzuka Circuit/Definition
- Suzuka, Mie/Definition
- Sven Biscop/Definition
- Sverdlovsk-class/Definition
- Swami Vivekananda/Definition
- Swap contract/Definition
- Sykes-Picot Agreement/Definition
- Sylvia Mathews Burwell/Definition
- Sympathy for the Devil (song)/Definition
- Synaptic pruning/Definition
- Syncretism/Definition
- Syndicated bank loan/Definition
- Synonym/Definition
- Synthetic aperture radar/Definition
- Synthetic elements/Definition
- Syrian civil war/Definition
- Sysop/Definition
- Systematic theology/Definition
- Systemic failure (finance)/Definition
- Systemic market failure/Definition
- Systemic risk/Definition
- TALD family decoy/Definition
- TBF Avenger/Definition
- TCG Giresun (F-491)/Definition
- TEAPOT (code word)/Definition
- TNT (explosive)/Definition
- TO-5 case/Definition
- TSQ-226/Definition
- TTC gauge/Definition
- TTC-39/Definition
- TYQ-93/Definition
- Ta-nehisi Coates/Definition
- Tabare Vazquez/Definition
- Tactical airlift/Definition
- Tactical intelligence/Definition
- Tactical mobility/Definition
- Tail/Definition
- Tainted blood scandal (Japan)/Definition
- Taipei Songshan Airport/Definition
- Taisho/Definition
- Taiwan Taoyuan International Airport/Definition
- Takajiro Ohnishi/Definition
- Takeo Kurita/Definition
- Talairach atlas/Definition
- Talairach coordinates/Definition
- Tale Ognenovski/Definition
- Talib Abdur-Rashid/Definition
- TalkSPORT/Definition
- Talkers Magazine/Definition
- Tall-tale postcard/Definition
- Tally Helfont/Definition
- Tally Zingher/Definition
- Tammy Baldwin/Definition
- Tank gun/Definition
- Tantalos/Definition
- Tara Sonenshine/Definition
- Tarantul-class/Definition
- Target fixation/Definition
- Tariff/Definition
- Tartan/Definition
- Tartaros/Definition
- Tashkent/Definition
- Tautology/Definition
- Tax burden/Definition
- Tax reform/Definition
- Tax wedge/Definition
- Tea Party Express/Definition
- Tea Party caucus/Definition
- Teapot (container)/Definition
- Ted Baehr/Definition
- Ted Bromund/Definition
- Ted Halstead/Definition
- Ted Kattouf/Definition
- Ted Kaufman/Definition
- Ted Nelson/Definition
- Ted Poe/Definition
- Ted Turner/Definition
- Teenager/Definition
- Tehrik-e-Taliban/Definition
- Teiresias/Definition
- Telford Taylor/Definition
- Temporal resolution/Definition
- Tenley Albright/Definition
- Tennessee Titans/Definition
- Tensegrity/Definition
- Tension-type headache/Definition
- Tenth Amendment to the United States Constitution/Definition
- Tenure track/Definition
- Terbutaline/Definition
- Term (general)/Definition
- Term (mathematics)/Definition
- Terminologia Anatomica/Definition
- Terrain Avoidance Warning System/Definition
- Terrain contour mapping/Definition
- Terri Schiavo/Definition
- Terrorism, Unconventional Threats and Capabilities Subcommittee/Definition
- Terrorist/Definition
- Terry Gardiner/Definition
- Terry Jeffrey/Definition
- Terry Krepel/Definition
- Terry Nichols/Definition
- Terry Sanford/Definition
- Tertiary explosive/Definition
- Tertiary source/Definition
- Teshub/Definition
- Tesla coil/Definition
- Testimonial evidence/Definition
- Tetracene/Definition
- Tetrachromacy/Definition
- Tetracycline/Definition
- Tetragamestus/Definition
- Tetrahydrofolate dehydrogenase/Definition
- Tetramethylsilane/Definition
- Tetryl/Definition
- Tetrytol/Definition
- Teucer/Definition
- Text/Definition
- Textbook/Definition
- Thaddeus McCotter/Definition
- Thales Group/Definition
- Thalpius/Definition
- Thanksgiving (U.S.)/Definition
- The Annunciation/Definition
- The Barnes Review/Definition
- The Blue Danube/Definition
- The Cold Equations/Definition
- The Crown (UK)/Definition
- The Insurgent/Definition
- The King's College/Definition
- The Love that Dares to Speak its Name/Definition
- The Military Balance/Definition
- The Pilgrim's Progress/Definition
- The Scotsman/Definition
- The Unsinkable Molly Brown (1964 film)/Definition
- The Walt Disney Company/Definition
- The War of the Worlds (1938 radio broadcast)/Definition
- The mathematics of voting/Definition
- Theater mobility/Definition
- Thebes/Definition
- Thelma Drake/Definition
- Themis/Definition
- Theodicy/Definition
- Theodore Duesterberg/Definition
- Theogony/Definition
- Theoretical biophysics/Definition
- Theoretical linguistics/Definition
- Theory/Definition
- Thermal equilibrium/Definition
- Thermal imaging/Definition
- Thermal power plant/Definition
- Thermokarst/Definition
- Thermoluminescent dosimeter/Definition
- Thersander/Definition
- Thigh/Definition
- Third Amendment to the United States Constitution/Definition
- Third Battle of Winchester/Definition
- Thirst/Definition
- Thisbe/Definition
- Thoas/Definition
- Thomas Blanton/Definition
- Thomas Carothers/Definition
- Thomas Carper/Definition
- Thomas Culora/Definition
- Thomas Dinwoodie/Definition
- Thomas E. Dewey/Definition
- Thomas E. Mann/Definition
- Thomas Fitzsimons/Definition
- Thomas Gale Moore/Definition
- Thomas Griffin/Definition
- Thomas Joscelyn/Definition
- Thomas Karako/Definition
- Thomas Kean/Definition
- Thomas Krannawitter/Definition
- Thomas Lifson/Definition
- Thomas Lippman/Definition
- Thomas Mifflin/Definition
- Thomas O'Gara/Definition
- Thomas P. Monaghan/Definition
- Thomas Petri/Definition
- Thomas Plough/Definition
- Thomas R. Gibian/Definition
- Thomas Ridge/Definition
- Thomas Rooney/Definition
- Thomas Sowell/Definition
- Thomas Sydnor/Definition
- Thomas Szasz/Definition
- Thor Ronay/Definition
- Thoracic surgery/Definition
- Thought experiment/Definition
- Thoughtcrime/Definition
- Thrasymedes/Definition
- Three Musketeers (book)/Definition
- Three Musketeers (candy)/Definition
- Three Teachings/Definition
- Thyestes/Definition
- Thymos/Definition
- Tidal power/Definition
- Tier 1 capital/Definition
- Tier 2 capital/Definition
- Tight coupling/Definition
- Tikrit/Definition
- Tim Curry/Definition
- Tim Farron/Definition
- Tim Holden/Definition
- Tim LaHaye/Definition
- Tim Murphy/Definition
- Tim Pawlenty/Definition
- Time inconsistency/Definition
- Time series/Definition
- Timor-Leste/Definition
- Timothy Geithner/Definition
- Timothy McVeigh/Definition
- Timothy Quill/Definition
- Timothy Walz/Definition
- Tinsmith/Definition
- Tissue (biology)/Definition
- Titan (moon)/Definition
- Titan III/Definition
- Titan IV/Definition
- Titanic (1953 film)/Definition
- Titans/Definition
- Tithonos/Definition
- Titular/Definition
- Tityos/Definition
- Tobin tax/Definition
- Todd Akin/Definition
- Todd Platts/Definition
- Todd Tiahrt/Definition
- Togo West/Definition
- Tokai/Definition
- Tokko/Definition
- Tolland-class/Definition
- Tom Allen/Definition
- Tom Allison/Definition
- Tom Cole/Definition
- Tom Daschle/Definition
- Tom Dine/Definition
- Tom Feeney/Definition
- Tom Fitton/Definition
- Tom Metzger/Definition
- Tom Minnery/Definition
- Tom Price/Definition
- Tom Rooney/Definition
- Tom Thumb (locomotive)/Definition
- Tom Udall/Definition
- Tomas de Torquemada/Definition
- Tone (linguistics)/Definition
- Tony Abbott/Definition
- Tony Bland/Definition
- Tony Judt/Definition
- Tony Perkins/Definition
- Topology (mathematics)/Definition
- Torn country/Definition
- Torpedo Squadron Eight/Definition
- Torpedo bomber/Definition
- Torpedo bulge/Definition
- Total intracranial volume/Definition
- Totenkopf Division/Definition
- Totipotent stem cell/Definition
- Toxic debt/Definition
- Toxicity/Definition
- Trade union/Definition
- Trade-weighted exchange rate/Definition
- Train (military)/Definition
- Transactions motive/Definition
- Transcription (genetics)/Definition
- Transcription factor/Definition
- Transfer payment/Definition
- Transfer payments/Definition
- Transferrin saturation/Definition
- Translation (genetics)/Definition
- Transparency (behaviour)/Definition
- Transplant/Definition
- Transplantation, autologous/Definition
- Transplantation, heterologous/Definition
- Transplantation, heterotopic/Definition
- Transport for London/Definition
- Trauma (physical)/Definition
- Trauma surgery/Definition
- Traveler/Definition
- Trend/Definition
- Trent Franks/Definition
- Tri-Committee/Definition
- Triacetyl triperoxide/Definition
- Triangle Institute for Security Studies/Definition
- Trichromacy/Definition
- Trimethoprim/Definition
- Trimethoprim-Sulfamethoxazole combination/Definition
- Trinity University/Definition
- Trinucleotide repeat disorder/Definition
- Triple-base propellant/Definition
- Tris(2-chloroethyl)phosphate/Definition
- Tritonal/Definition
- Troezen/Definition
- Troilus/Definition
- Trojan (computers)/Definition
- Trompe-l'œil/Definition
- Trondheim/Definition
- Trophianthus/Definition
- Trophozoite/Definition
- Tu-4/Definition
- Tu-95/Definition
- Tunica intima/Definition
- Tunnel/Definition
- Turbine/Definition
- Turing Award/Definition
- Turing test/Definition
- Twelfth Army Group/Definition
- Twenty Thousand Leagues under the Sea/Definition
- Twenty-first Army Group/Definition
- Twin/Definition
- Twins/Definition
- Tyndareus/Definition
- Type 65 (torpedo)/Definition
- Type I error/Definition
- Type II error/Definition
- Typhus/Definition
- Tzipi Livni/Definition
- U-2 Incident/Definition
- U.S. Ambassador to Somalia/Definition
- U.S. Ambassador to Turkey/Definition
- U.S. Ambassador to Yemen/Definition
- U.S. Ambassador to the African Union/Definition
- U.S. Ambassador to the European Union/Definition
- U.S. Ambassador to the United Kingdom/Definition
- U.S. Army War College/Definition
- U.S. Army branch advanced course/Definition
- U.S. Army branch basic course/Definition
- U.S. Chamber of Commerce/Definition
- U.S. Democratic-Farmer-Labor Party/Definition
- U.S. Department of the Interior/Definition
- U.S. House Majority Leader/Definition
- U.S. House Majority Whip/Definition
- U.S. House Minority Leader/Definition
- U.S. House Minority Whip/Definition
- U.S. Naval War College/Definition
- U.S. Secretary of Education/Definition
- U.S. Secretary of Health and Human Services/Definition
- U.S. Senate Majority Whip/Definition
- U.S. Senate Minority Whip/Definition
- U.S. Speaker of the House/Definition
- U.S. state/Definition
- U1 small nuclear ribonucleoprotein/Definition
- UDMH/Definition
- UH-60A/Definition
- UH-60M/Definition
- UN Watch/Definition
- UNMOVIC/Definition
- URL normalization/Definition
- USS Antietam (CG-54)/Definition
- USS Antietam (CV-36)/Definition
- USS Archerfish (SS-311)/Definition
- USS Archerfish (SSN-678)/Definition
- USS Arizona (BB-39)/Definition
- USS Arleigh Burke (DDG-51)/Definition
- USS Barry (DDG-52)/Definition
- USS Bataan (LHD-5)/Definition
- USS Bennington (CV-20)/Definition
- USS Bonhomme Richard (LHD-6)/Definition
- USS Cochrane (DDG-21)/Definition
- USS Comte de Grasse (DD-974)/Definition
- USS Enterprise (NCC-1701)/Definition
- USS Essex (CV-9)/Definition
- USS Essex (LHD-2)/Definition
- USS Forrestal (CV-59)/Definition
- USS Franklin (CV-13)/Definition
- USS George H.W. Bush (CVN-77)/Definition
- USS Hopper (DDG-70)/Definition
- USS Hornet (CV-12)/Definition
- USS Hornet (CV-8)/Definition
- USS Independence (CV-62)/Definition
- USS Independence (CVA-62)/Definition
- USS Independence (CVL-22)/Definition
- USS Independence (LCS-2)/Definition
- USS Iwo Jima (LHD-7)/Definition
- USS Kearsarge (LHD-3)/Definition
- USS Lake Erie (CG-70)/Definition
- USS Langley (CV-1)/Definition
- USS Long Beach (CGN-9)/Definition
- USS Mahan (DDG-72)/Definition
- USS Makin Island (LHD-8)/Definition
- USS McCampbell (DDG-85)/Definition
- USS Missouri (BB-63)/Definition
- USS Nimitz (CVN-68)/Definition
- USS Ohio (SSGN-726)/Definition
- USS Oriskany (CV-34)/Definition
- USS Oscar Austin (DDG-79)/Definition
- USS Pinckney (DDG-91)/Definition
- USS Princeton (CG-59)/Definition
- USS Raleigh (CL-7)/Definition
- USS Raleigh (LPD-1)/Definition
- USS Ramage (DDG-61)/Definition
- USS Ranger (CV-4)/Definition
- USS Ranger (CV-61)/Definition
- USS Reuben James (FFG-57)/Definition
- USS Samuel B. Roberts (DD-823)/Definition
- USS Samuel B. Roberts (FFG-58)/Definition
- USS San Jacinto (CVL-30)/Definition
- USS Saratoga (CV-60)/Definition
- USS Stout (DDG-55)/Definition
- USS Ticonderoga (CG-47)/Definition
- USS Ticonderoga (CV-14)/Definition
- USS Truxtun (CGN-35)/Definition
- USS Vella Gulf (CG-72)/Definition
- USS Vincennes (18)/Definition
- USS Vincennes (CA-44)/Definition
- USS Vincennes (CG-49)/Definition
- USS Vincennes (CL-64)/Definition
- USS Wasp (CV-18)/Definition
- USS Yorktown (CG-48)/Definition
- USS Yorktown (CV-10)/Definition
- USS Yorktown (CV-5)/Definition
- UYK-128/Definition
- UYS-503/Definition
- Udaloy-class/Definition
- Udo von Woyrsch/Definition
- Ullage engine/Definition
- Ulrich Greifelt/Definition
- Ulrich-Wilhelm Graf von Schwerin von Schwanenfeld/Definition
- Ulster-Scots/Definition
- Umar Al-Khattab/Definition
- Umbrella term/Definition
- Uncle Tom's Cabin/Definition
- Under Pressure/Definition
- Undersea warfare/Definition
- Underwriting/Definition
- Unemployment rate/Definition
- Unemployment trap/Definition
- Unicellular/Definition
- Unincorporated territories of the United States/Definition
- Union of Progressive Zionists/Definition
- Unit (chemical engineering)/Definition
- Unit (measurement)/Definition
- Unit labour cost/Definition
- Unit sphere/Definition
- Unitary warhead/Definition
- United Nations Charter/Definition
- United Nations Environment Programme/Definition
- United Nations General Assembly Resolution 181/Definition
- United Nations Special Commission/Definition
- United States Air Force Academy/Definition
- United States Army Air Corps/Definition
- United States Department of Veterans Affairs/Definition
- United States Lifesaving Service/Definition
- University of Texas Medical Branch/Definition
- Unsaturated iron binding capacity/Definition
- Urban ecology/Definition
- Urea nitrate/Definition
- Urinary tract/Definition
- Ursus/Definition
- Usage statistics/Definition
- Use value/Definition
- Ustad Mohammed Yasir/Definition
- Utilities Telecom Council/Definition
- Uzi Baram/Definition
- VELA satellite/Definition
- VOMI/Definition
- VPN Consortium/Definition
- VRC-111/Definition
- VRC-87/Definition
- VRC-88/Definition
- VRC-89/Definition
- VRC-90/Definition
- VRC-91/Definition
- VRC-92/Definition
- VSQ-2/Definition
- Vacancy (economics)/Definition
- Vacancy rate/Definition
- Vacuum (political)/Definition
- Vaivara Concentration Camp/Definition
- Valiant (bomber)/Definition
- Value at Risk/Definition
- Value at risk/Definition
- Valve Software/Definition
- Vampire (supernatural)/Definition
- Vannevar Bush/Definition
- Variance/Definition
- Vartan Gregorian/Definition
- Vascular endothelium/Definition
- Vasodilator/Definition
- Vector (immunology)/Definition
- Vector (military)/Definition
- Vector (navigation)/Definition
- Vector (virology)/Definition
- Vector-borne diseases/Definition
- Veda Parayan/Definition
- Vegetation/Definition
- Venomous snake/Definition
- Vern Clark/Definition
- Vernon Clark/Definition
- Vernon Ehlers/Definition
- Vernon Jordan, Jr./Definition
- Veronique Chemla/Definition
- Vertebral column/Definition
- Vertebrate/Definition
- Vertical replenishment/Definition
- Vibrionaceae/Definition
- Vibuthi/Definition
- Vice-President of the United States of America/Definition
- Vickers Wellington/Definition
- Victim/Definition
- Victor (bomber)/Definition
- Victoria Holt/Definition
- Video/Definition
- Vienna (Virginia)/Definition
- Viennese Waltz/Definition
- Vietnamese cuisine/Definition
- Viggo Butler/Definition
- Viktor Brack/Definition
- Vinay Deolalikar/Definition
- Vincent P. McCarthy/Definition
- Violence/Definition
- Violet/Definition
- Viperidae/Definition
- Virgil Goode/Definition
- Virginia Aksan/Definition
- Virginia Foxx/Definition
- Virginia Mulberger/Definition
- Virginia Sloan/Definition
- Virginia Woolf/Definition
- Virginia-class/Definition
- Virulence/Definition
- Visa Inc./Definition
- Visby-class/Definition
- Vision Forum/Definition
- Viton/Definition
- Vivid Entertainment/Definition
- Vladimir Kartashkin/Definition
- Voice (music)/Definition
- Volatility (chemical weapon)/Definition
- Volatility (explosives)/Definition
- Volcanic crater/Definition
- Volcanic eruption/Definition
- Volcano/Definition
- Volhard titration/Definition
- Volume (computing)/Definition
- Volumetric explosives/Definition
- Voluntary board/Definition
- Voluntary sector/Definition
- Vox Day/Definition
- Voxel/Definition
- Voxel-based morphometry/Definition
- Vulcan (bomber)/Definition
- W. Andrew Terrill/Definition
- W. Craig Fugate/Definition
- W. DeVier Pierson/Definition
- W. Kenneth Ferree/Definition
- W. Thomas Smith Jr./Definition
- W. Todd Akin/Definition
- W28 (nuclear weapon)/Definition
- W70 (nuclear weapon)/Definition
- W78 (nuclear weapon)/Definition
- W79 (nuclear weapon)/Definition
- W84 (nuclear weapon)/Definition
- W85 (nuclear weapon)/Definition
- W86 (nuclear weapon)/Definition
- W89 (nuclear weapon)/Definition
- W9 (nuclear weapon)/Definition
- W90 (nuclear weapon)/Definition
- W91 (nuclear weapon)/Definition
- WAU-23/Definition
- WE.177 (nuclear weapon)/Definition
- WVHA Amtsgruppe A/Definition
- WVHA Amtsgruppe B/Definition
- WVHA Amtsgruppe C/Definition
- WVHA Amtsgruppe D/Definition
- WVHA Amtsgruppe W/Definition
- Wade Crow/Definition
- Waffen-SS/Definition
- Wage-fund theory/Definition
- Waldemar Hoven/Definition
- Waldemar Klingelhoefer/Definition
- Waldemar von Radetzky/Definition
- Walid Phares/Definition
- Wall Street Journal/Definition
- Wallace Gregson/Definition
- Wally Herger/Definition
- Walter Blune/Definition
- Walter Burkert/Definition
- Walter D. Givhan/Definition
- Walter Dellinger/Definition
- Walter E. Williams/Definition
- Walter Foerster/Definition
- Walter Haensch/Definition
- Walter Isaacson/Definition
- Walter Kansteiner/Definition
- Walter Krueger/Definition
- Walter M. Weber/Definition
- Walter Russell Mead/Definition
- Walter Short/Definition
- Walther Funk/Definition
- War college/Definition
- Warfighter/Definition
- Warrior (armored fighting vehicle)/Definition
- Warrior (individual)/Definition
- Warwickshire Avon/Definition
- Washington Irving/Definition
- Water well/Definition
- Watergate/Definition
- Waterloo (Underground station)/Definition
- Waterloo and City Line/Definition
- Watervliet Arsenal/Definition
- Wayne Downing/Definition
- Wayne LaPierre, Jr./Definition
- Wayne White/Definition
- Wealth (economics)/Definition
- Wealth effect/Definition
- Web search engine/Definition
- Web site/Definition
- Wehrmacht/Definition
- Welfare (economics)/Definition
- Wellington Boone/Definition
- Wendell Cox/Definition
- Wendy Cadge/Definition
- Wendy Kaminer/Definition
- Wendy Sherman/Definition
- Wendy Wright/Definition
- Werner Braune/Definition
- Werner Engels/Definition
- Werner von Haeften/Definition
- Wesley Clark/Definition
- Wesley McDonald/Definition
- West Germanic languages/Definition
- West Sussex/Definition
- Westboro Baptist Church (Topeka, Kansas)/Definition
- Western Europe/Definition
- Western culture/Definition
- Westminster (Underground station)/Definition
- What is the/Definition
- White House Chief of Staff/Definition
- White hat/Definition
- White matter surface/Definition
- Wholesale banking/Definition
- Wicca/Definition
- Wichita-class/Definition
- Wife/Definition
- Wikibooks/Definition
- Wikimania/Definition
- Wikimedia Commons/Definition
- Wikinews/Definition
- Wikiquote/Definition
- Wikisource/Definition
- Wikispecies/Definition
- Wikitravel/Definition
- Wikiversity/Definition
- Wiktionary/Definition
- Wilfred Laurier/Definition
- Wilhelm Beiglboeck/Definition
- Wilhelm Canaris/Definition
- Wilhelm Koppe/Definition
- Wilhelm Wundt/Definition
- Will A. Gunn/Definition
- Will Marshall/Definition
- William Banks/Definition
- William Becker/Definition
- William Blount/Definition
- William Bradford Reynolds/Definition
- William Brock/Definition
- William Burns/Definition
- William Bush/Definition
- William C. Houston/Definition
- William Calhoun/Definition
- William Christison/Definition
- William Clay/Definition
- William Crowe/Definition
- William Dannemeyer/Definition
- William DePree/Definition
- William Drayton/Definition
- William Durch/Definition
- William F. Buckley Jr./Definition
- William Faulkner/Definition
- William Federer/Definition
- William Few/Definition
- William Fields/Definition
- William Fraser/Definition
- William Friedman/Definition
- William Gerrity/Definition
- William H. Taft, IV/Definition
- William Halsted/Definition
- William Haynes II/Definition
- William Holmes McGuffey/Definition
- William Houston/Definition
- William L. Pierce/Definition
- William Leahy/Definition
- William Lind/Definition
- William Nash/Definition
- William Niskanen/Definition
- William Nojay/Definition
- William Odom/Definition
- William Paley (broadcasting)/Definition
- William Paley (theologian)/Definition
- William Paterson/Definition
- William Perry/Definition
- William Press/Definition
- William Quandt/Definition
- William R. Davie/Definition
- William Reinsch/Definition
- William Rogers/Definition
- William Ruckelshaus/Definition
- William Rugh/Definition
- William Rusher/Definition
- William Samuel Johnson/Definition
- William Schambra/Definition
- William Schneider/Definition
- William Schneider, Jr./Definition
- William Sessions/Definition
- William Seward/Definition
- William Studeman/Definition
- William Wallace (U.S. Army)/Definition
- William Welch/Definition
- William Woodruff/Definition
- Willow Darsie/Definition
- Wiltshire/Definition
- Wim Kok/Definition
- Wimbledon, London/Definition
- Winchester, Virginia/Definition
- Wind Corrected Munitions Dispenser/Definition
- Wind power/Definition
- Wind power plant/Definition
- Windmill/Definition
- Winfield S. Hancock/Definition
- Witold Lutoslawski/Definition
- Wolff-Parkinson-White syndrome/Definition
- Wolff-Parkison-White Syndrome/Definition
- Wolfgang Stefan Heinz/Definition
- Wolfram Sievers/Definition
- Woodrow Wilson International Center for Scholars/Definition
- Working majority/Definition
- Working population/Definition
- World/Definition
- World Journalism Institute/Definition
- Writedown (accounting)/Definition
- Wushu/Definition
- XM1202 Mounted Combat System/Definition
- XM1204 NLOS mortar/Definition
- XM1216 Small Unmanned Ground Vehicle/Definition
- XM1217 Transport MULE Vehicle/Definition
- XM31 (rocket)/Definition
- Xavier Becerra/Definition
- Xen/Definition
- Xiangqi/Definition
- YAG/Definition
- Yael Dayan/Definition
- Yahya Khan/Definition
- Yamato Dynasty/Definition
- Yamato damashii/Definition
- Yamato race/Definition
- Yaser Esam Hamdi/Definition
- Yegor Gaidar/Definition
- Yehudit Barsky/Definition
- Yelling interrogation techniques/Definition
- Yellow/Definition
- Yellow Dog Democrat/Definition
- Yellow Sun Mark 1 (nuclear weapon)/Definition
- Yellow Sun Mark 2 (nuclear weapon)/Definition
- Yellow Sun family (nuclear weapon)/Definition
- Yerushalayim Shelanu/Definition
- Yes, Prime Minister/Definition
- Yield (finance)/Definition
- Yield spread/Definition
- Yingluck Shinawatra/Definition
- Yisrael Beiteinu/Definition
- Yitzhak Rabin/Definition
- Yoram Ettinger/Definition
- Yorktown-class/Definition
- Yosemite National Park/Definition
- Yoshijiro Umezu/Definition
- Yoshimichi Hasegawa/Definition
- Yossi Alpher/Definition
- You Will Go to the Moon/Definition
- Yousaf Raza Gillani/Definition
- Youth/Definition
- Yoweri Museveni/Definition
- Yukio Mishima/Definition
- Yuval Diskin/Definition
- Yves Boyer/Definition
- Yvette Clarke/Definition
- ZSU-23/Definition
- Zack Exley/Definition
- Zalmay Khalizad/Definition
- Zareena Grewal/Definition
- Zarnowitz rule/Definition
- Zcom/Definition
- Zentrum/Definition
- Zero sum game/Definition
- Zeyno Baran/Definition
- Ziad Abdelnour/Definition
- Ziad Jarrah/Definition
- Zinc sulfide/Definition
- Zoe Baird/Definition
- Zombie (supernatural)/Definition
- Édouard Manet/Definition