PowerShell/Data/Abbr/general.csv

1	ABBR	MEANING
2	0D	obvious deed
3	1AM	Air Mechanic 1st Class
4	1D	One-Dimensional
5	2AM	Air Mechanic 2nd Class
6	2D	Two-dimensional
7	2LA	Two Letter Acronym
8	2Lt	2nd Lieutenant
9	3AM	Air Mechanic 3rd Class
10	3D	Three-Dimensional
11	3G	Third-generation mobile telephone system
12	3i	Investors In Industry (venture capitalists)
13	3M	Minnesota Mining and Manufacturing Company
14	4G	Fourth-generation mobile telephone system
15	4WD	Four-wheel drive
16	5D	Five-Dimensional
17	6D	Six-Dimensional
18	7D	Seven-Dimensional
19	8D	Eight-Dimensional
20	9D	Nine-Dimensional
21	A	Ampere
22	A10	Atlantic 10 Conference
23	A1C	Airman First Class
24	A4	European standard office paper size
25	aA	Attoampere
26	AAA	administration,authorization,and authentication,American Automobile Association ('Triple-A'),anti-aircraft artillery,Amateur Athletic Association (of England),Asistencia Asesoría y Administración (Spanish,'Assistance,Consulting,and Administration'—Mexican professional wrestling promotion)
27	AAAS	American Association for the Advancement of Science
28	AAAV	Advanced Amphibious Assault Vehicle
29	AADAC	Alberta Alcohol and Drug Abuse Commission
30	AADD	Adult attention deficit disorder
31	AADT	annual average daily traffic
32	AAFES	Army and Air Force Exchange Service
33	AAIS	advanced airborne interceptor simulator
34	AAM	air-to-air missile
35	AAMOF	as a matter of fact
36	AAN	American Academy of Nursing
37	AANEAS	Anglo-Australian Near-Earth Asteroid Survey
38	AAODL	Atmospheric Aerosols and Optics Data Library
39	AAPC	Accounting and Auditing Policy Committee
40	AARP	American Association of Retired Persons (now officially known only by the initials)
41	AASPEM	advanced air-to-air system performance evaluation model
42	AAT	Australian Antarctic Territory
43	AAV	Amphibious Assault Vehicle
44	AAWC	anti-air warfare commander
45	AB	Able Seaman (both the rank and the occupation),Alberta (postal symbol)
46	ABB	ASEA Brown Boveri (Swiss-Swedish multinational company)
47	ABBA	Agnetha,Benny,Björn,Anni-Frid (Swedish pop group)
48	ABC	the first three letters of the Latin script known as the alphabet
49	ABC	abstinence, be faithful, condoms
50	ABC	Active Body Control
51	ABC	airway, breathing, circulation
52	ABC	Alcoholic Beverage Commission
53	ABC	alien big cat
54	ABC	always be careful
55	ABC	American-born Chinese
56	ABC	anti-lock brake controller
57	ABC	atomic, biological, chemical
58	ABCS	(U.S.) Army Battle Command System
59	ABET	Accreditation Board for Engineering and Technology
60	ABFIST	Advanced Bradley Full Crew Interactive Skills Trainer
61	ABGI	Addington-Barker Group International
62	ABIN	Agência Brasileira de Inteligência (Brazilian Intelligence Agency)
63	ABL	American Basketball League
64	ABLE	AirBorne Law Enforcement (police air support unit)
65	ABMC	American Battle Monuments Commission
66	ABN	Australian Business Number (a number issued by the Australian government as registration of a business and used for taxation purposes)
67	ABPI	Association of the British Pharmaceutical Industry
68	ABRSM	Associated Board of the Royal Schools of Music
69	ABS	anti-lock braking system
70	ABSA	Amalgamated Banks of South Africa
71	ABSTRIPS	abstraction-based STRIPS
72	ABV	Alcohol by volume
73	ABW	Aruba (ISO 3166 trigram)
74	Ac	Actinium
75	AC	Adriamycin-Cyclophosphamide (chemotherapy),Air Conditioning,Aircraftman,Alternating Current,Altocumulus,ante Christum (Latin,'before Christ'; see BC),ante cibum (Latin,'before meals'),Antigua and Barbuda (FIPS 10-4 country code),Associazione Calcio (Italian,'football (soccer) club'),A/C,Air Conditioned/Conditioning,Aircraft
76	aC	Attocoulomb
77	AC1	Aircraftman 1st Class
78	AC2	Aircraftman 2nd Class
79	ACA	Affordable Care Act,shorthand for the Patient Protection and Affordable Care Act,commonly called 'Obamacare',Airspace Control Authority,Airspace Co-ordination Area,A Current Affair
80	ACARS	Aircraft Communications Addressing and Reporting System
81	ACB	Asociación de Clubes de Baloncesto (Spanish for 'Association of Basketball Clubs')
82	ACCAC	Awdurdod Cymwysterau,Cwricwlwm ac Asesu Cymru (Qualifications,Curriculum and Assessment Authority for Wales)
83	ACCD	American Coalition of Citizens with Disabilities
84	ACCS	Air Communications and Control Squadron
85	ACDA	Arms Control & Disarmament Agency
86	ACDC	Alternating Current Direct Current,the name of an Australian rock music band,a term for a bisexual person,A/Cdre,Air Commodore
87	ACDT	Apple Certified Desktop Technician,Australian Central Daylight Time
88	ACES	Aerolíneas Centrales de Colombia (Spanish,'Central Colombian Airlines'),Auxiliary Campus Enterprises and Services of Alfred State College
89	ACF	Administration for Children and Families,American Car and Foundry,American Culinary Federation
90	ACHT	Average Call Hold Time
91	ACINT	Acoustic Intelligence
92	ACK	Acknowledge (telecommunications; cf. NAK)
93	ACL	Access Control List,Anterior cruciate ligament; the initialism can also refer to an injury to this ligament.,Atlantic Coast Line Railroad
94	ACLJ	American Center for Law and Justice
95	ACLOS	Automatic CLOS (missile control system)
96	ACLS	American Council of Learned Societies
97	ACLU	American Civil Liberties Union,American Communist Lawyers Union (pejorative slang for the above)
98	ACM	many,including Association for Computing Machinery; see entry
99	ACMC	(U.S.) Assistant Commandant of the Marine Corps
100	ACN	Airborne Communications Node,Australian Company Number (number issued by the Australian government as registration of a limited liability company)
101	ACNA	Anglican Church in North America
102	ACO	Airspace Control Order
103	ACOBA	Advisory Committee on Business Appointments
104	ACOG	American College of Obstetricians and Gynecologists
105	ACOM	(U.S.) Atlantic Command
106	ACORN	Association of Community Organizations for Reform Now
107	ACP	African,Caribbean and Pacific Group of States,Air Control Point
108	ACR	Advanced Concepts and Requirements
109	ACRI	African Crisis Initiative
110	ACRT	Advanced Concepts Research Tool simulator
111	ACS	Affiliated Computer Services (NYSE ACS),Alaska Communications Service,American Cancer Society,American Chemical Society,Association of Caribbean States,Australian Computer Society
112	ACSC	Army Command and Staff College (various nations)
113	ACST	American Cooperative School of Tunis
114	ACST	Australian Central Standard Time
115	ACT	Adaptive Control of Thought (cognitive model),American College Test (ing Program),Australian Capital Territory (also postal symbol),ACT UP,AIDS Coalition to Unleash Power
116	ACTD	Advanced Concept Technology Demonstration
117	ACTF	(U.S.) Army Constructive Training Federation,Australian Children's Television Foundation,ACT-R,ACT-Rational (cognitive model),ACT-R/PM,ACT-R/Perceptual-Motor (cognitive model)
118	ACTU	Australian Council of Trade Unions
119	ACU	American Conservative Union
120	ACUF	Advisory Committee on Undersea Features,American Conservative Union Foundation
121	AD	Air Defence,Andorra (ISO 3166 digram),Anno Domini (Latin for 'In the year of our Lord')
122	ADA	Air Defence Artillery,American Dental Association,Assistant District Attorney,Americans with Disabilities Act (see also the similar but non-acronymic Ada programming language)
123	ADAC	Allgemeiner Deutscher Automobil-Club (German for 'General German Automobile Club')
124	ADAGE	Air Defense Air to Ground Engagement (simulation)
125	ADAP	AIDS Drug Assistance Program
126	ADAS	Asiago-DLR Asteroid Survey
127	ADAT	Alesis Digital Audio Tape (recording format)
128	ADATS	Agricultural Development and Training Society,Air Defence Anti-Tank System,Australian Defence Air Traffic System
129	ADB	Asian Development Bank
130	ADC	Aide De Camp,U.S. Air Defense Command (1946-1992),Apple Display Connector,Program Against Digital Counterfeiting of Currency
131	ADD	Analog Digital Digital (CD quality),Attention-Deficit Disorder,Administration on Developmental Disabilities
132	ADDIE	Analyze Design Develop Implement and Evaluate
133	ADDNS	Advanced Deployable Day/Night Simulation
134	ADGB	Air Defence of Great Britain
135	ADHD	Attention-Deficit Hyperactivity Disorder
136	ADHS	Attention-Deficit Hyperactivity Syndrome
137	ADI	Acceptable/Allowable Daily Intake
138	ADIZ	Air Defence Identification Zone
139	ADL	Anti-Defamation League
140	ADM	Administrative,,Admiral,and the U.S. Public Health Service Commissioned Corps,Archer Daniels Midland,Assistant Deputy Minister
141	ADOA	Air Defence Operations Area
142	ADP	Adenosine DiPhosphate,Army Doctrine Publication (UK,Canada,Australia),Automatic/Automated Data Processing
143	ADRG	Arc-second Raster Chart (ARC) Digitized Raster Graphics
144	ADS	Active Denial System,Astrophysics Data System,Attention Deficit Syndrome
145	ADSR	Attack,Decay,Sustain,Release (sound envelope specification)
146	ADT	Atlantic Daylight Time (UTC−3 hours)
147	ADTB	Army Doctrine and Training Bulletin
148	ADW	Air Defence Warning
149	AE	Armed Forces Africa/Canada/Europe/Middle East (postal symbol),United Arab Emirates (ISO 3166 digram; FIPS 10-4 country code),Artix Entertainment,American Eagle,A&E, Arts & Entertainment Network,the original name for the U.S. TV channel now known as A&E Network
150	AEDT	Australian Eastern Daylight Time
151	AEF	American Expeditionary Force
152	AEGIS	Airborne Early warning Ground environment Interface Segment (fake etymology)
153	AESR	Aeronautical Equipment Service Record
154	AEST	Australian Eastern Standard Time
155	aet	After extra time (Football)
156	AEW	Airborne Early Warning,Airborne Electronic Warfare
157	AF	Afghanistan (FIPS 10-4 country code; ISO 3166 digram),Air Force,As f*ck
158	aF	Attofarad
159	AFA	U.S. Air Force Academy,Asociación del Fútbol Argentino (Spanish for 'Argentine Football Association')
160	AFAIC	As Far As I'm Concerned
161	AFAICT	As Far As I Can Tell
162	AFAIK	As Far As I Know
163	AFAIR	As Far As I Remember/Recall
164	AFAM	Associazione Friulana di Astronomia e Meteorologia (Italian,'Friuli Association of Astronomy and Meteorology'),Department of African and Afro-American Studies,University of North Carolina at Chapel Hill — notable for its links to the school's academic-athletic scandal in the 2010s
165	AFATDS	Advanced Field Artillery Tactical Data System
166	AFCEA	Armed Forces Communications and Electronics Association
167	AFDB	African Development Bank
168	AFES	Automatic Fire Extinguishing System
169	AFG	Afghanistan (ISO 3166 trigram)
170	AFI	French Territory of the Afars and Issas (ISO 3166 trigram; obsolete since 1977),'Agencia Federal de Investigaciónes' (México)
171	AFIST	Abrams Full Crew Interactive Skills Trainer
172	AFJ	April Fool's Joke
173	AFK	Away From Keyboard (Internet chat abbreviation)
174	AFLAC	American Family Life Assurance Company of Columbus
175	AFO	Association of Field Ornithologists
176	AFOSR	U.S. Air Force Office of Scientific Research
177	AFP	Agence France-Presse (French,'French Press Agency'), Australian Federal Police
178	AFQT	Armed Forces Qualification Test
179	AFRC	Air Force Reserve Command
180	AFRL	Air Force Research Laboratory
181	AFROTC	Air Force Reserve Officer Training Corps
182	AFRTS	Armed Forces Radio and Television Service
183	AFSC	U.S. Air Force Staff College (obsolete; replaced with JFSC), U.S. Air Force Systems Command
184	AFSCN	U.S. Air Force Satellite Control Network
185	AFSPC	Air Force Space Command
186	AFT	American Farmland Trust
187	AFV	armoured fighting vehicle
188	AG	air gunner,Aktiengesellschaft (German,'incorporated'),Algeria (FIPS 10-4 country code),Antigua and Barbuda (ISO 3166 digram),Assemblies of God
189	ag	Attogram
190	Ag	Silver (Latin for 'argentum')
191	AGA	AB Gas-accumulator ('ah-gah',Swedish company),Advanced Graphics Architecture
192	AGARD	Advisory Group for Aerospace Research and Development
193	AGARDograph	Advanced Guidance for Alliance Research and Development publication
194	AGASA	Akeno Giant Air Shower Array (cosmic ray detector)
195	AGB	Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance
196	AGC	Adjutant General's Corps (British Army)
197	AGDC	Australian Game Developers' Conference
198	AGI	Auxiliary Group Intelligence
199	AGM	Annual General Meeting
200	AGN	Active Galactic Nucleus
201	AGO	Angola (ISO 3166 trigram)
202	AGP	Accelerated Graphics Port
203	AGRICOLA	Agriculture Online Access
204	AGS	Alaska Ground Station (LandSat)
205	AGTS	Advanced Gunnery Training System
206	AGU	American Geophysical Union
207	AGW	Autonomous Guided Weapon
208	Ah	Ampere-hour
209	AH	Attack Helicopter
210	aH	Attohenry
211	AHA	American Heart Association
212	AHCPR	Agency for Health Care Policy and Research (obsolete; replaced with AHRQ)
213	AHEC	Australian Health Ethics Committee
214	AHPCRC	Army High Performance Computing Research Center
215	AHQ	Air Headquarters
216	AHRQ	Agency for Healthcare Research and Quality
217	AHS	American Housing Survey
218	AI	Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence,Anguilla (ISO 3166 digram)
219	AIA	Aerospace Industries Association,American Institute of Architects,Anguilla (ISO 3166 trigram)
220	AIAA	American Institute of Aeronautics and Astronautics
221	AIC	African Independent Church,Animal Identification Coordinator
222	AICD	Australian Institute of Company Directors
223	AICMFP	And I Claim My Five Pounds
224	AID	U.S. Agency for International Development
225	AIDS	Acquired Immune Deficiency Syndrome
226	AIM	Australian Institute of Management
227	AIMP	Aurora Incremental Modernization Project
228	AIPAC	American Israel Public Affairs Committee
229	AIR	Aircraft Inventory Record
230	AIRFA	American Indian Religious Freedom Act
231	AIRS	Aerometric Information Retrieval System (obsolete; replaced with AFS)
232	AIS	Australian Institute of Sport,Automatic Identification System
233	AISB	(British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour
234	aJ	Attojoule
235	AJ	Azerbaijan (FIPS 10-4 country code)
236	Ajax	Asynchronous JavaScript And XML
237	AJD	Astronomical Julian day
238	AJP	Allied Joint Publication
239	AJPW	All Japan Pro Wrestling
240	AK	Alaska (postal symbol)
241	aK	Attokelvin
242	AKA	Above knee amputation (orthopaedic usage)
243	AKDT	Alaska Standard Daylight Saving Time (UTC−8 hours)
244	AKP	Adalet ve Kalkınma Partisi (Turkish,'Justice and Development Party')
245	AKST	Alaska Standard Time (UTC−9 hours)
246	AL	Alabama (postal symbol),Albania (FIPS 10-4 country code; ISO 3166 digram),Anno Lucis (Latin,'Year of Light',in Masonic tradition,most often seen on plaques bearing the founding dates of buildings,in years AD and years AL)
247	Al	Aluminium
248	aL	Attolitre
249	ALA	Åland Islands (ISO 3166 trigram)
250	ALAP	As Long/Late As Possible
251	ALARM	Air-Launched Anti-Radar Missile
252	ALB	Albania (ISO 3166 trigram)
253	ALD	Accounting Line Designator (nuclear weapon targeting)
254	ALERT	Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre
255	ALF	Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front
256	ALG	Algeria (IOC and FIFA trigram,but not ISO 3166)
257	ALGOL	ALGOrithmic Language
258	ALPA	Air Line Pilots Association
259	ALS	Amyotrophic Lateral Sclerosis
260	ALSHS	Abraham Low Self-Help Systems
261	ALSP	Aggregate Level Simulation Protocol
262	ALTE	Association of Language Testers in Europe
263	Am	Americium
264	AM	Amplitude Modulation and Ante Meridiem; see entry,Armenia (FIPS 10-4 country code; ISO 3166 digram)
265	AM1	Airman 1st class
266	AMCB	U.S. Army/Marine Corps Board
267	AMFOM	Advanced Missile Fly Out Model
268	AMFR	Age-specific Marital Fertility Rate,Amplitude Modulation Following Response
269	AMFRS	Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System
270	AML	Acute Myeloid Leukaemia
271	AMLCD	Active Matrix Liquid Crystal Display
272	AMLO	Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency)
273	AMO	Atlantic Multidecadal Oscillation
274	AMOLED	Active-matrix organic light-emitting diode
275	AMOS	Advanced MOrtar System,Air Force Maui Optical and Supercomputing observatory
276	AMP	Adenosine MonoPhosphate,Automated Mission Planner
277	AMRAAM	Advanced Medium-Range Air-to-Air Missile
278	AMRDEC	U.S. Aviation & Missile Research,Development,& Engineering Center
279	AMS	Agriculture Marketing Service,American Mathematical Society
280	AMSAA	U.S. Army Materiel Systems Analysis Activity
281	AMSO	U.S. Army Model and Simulation Office
282	AMSU	Advanced Microwave Sounding Unit
283	AMTE	UK Admiralty Marine Technology Establishment (1977-1984)
284	AN	Andorra (FIPS 10-4 country code),Netherlands Antilles (ISO 3166 digram)
285	aN	Attonewton
286	ANA	Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body,Australian National Airways,Australian Natives' Association
287	ANC	African National Congress
288	AND	Andorra (ISO 3166 trigram)
289	ANFO	Ammonium nitrate/fuel oil (explosive)
290	ANGLiCo	Air/Naval Gunfire Liaison Company
291	ANL	Argonne National Laboratory
292	ANM	Acoustic Noise Monitor
293	ANOVA	ANalysis Of VAriance
294	ANS	Applied and Natural Sciences
295	ANSI	American National Standards Institute
296	ANT	Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram,but not ISO 3166 or FIFA)
297	ANTM	America's Next Top Model
298	ANTY	Acronyms,No Thank You
299	ANWR	Arctic National Wildlife Refuge /ˈænwɑr/
300	ANZ	Australia and New Zealand Banking Group
301	ANZAC	Australian and New Zealand Army Corps
302	AO	Angola (FIPS 10-4 country code; ISO 3166 digram),Approach Officer (submarine),Area of Operations
303	AOC	Air Operations Centre,Air Officer Commanding
304	AOD	Adrenalin O.D. (punk rock band)
305	AOI	Angle Of Incidence (Arab Organization for Industrialization)
306	AOL	America OnLine
307	AOR	Area of Responsibility
308	AOSTH	Adventures of Sonic the Hedgehog
309	AOTS	Attack of the Show!
310	AOU	American Ornithologists' Union
311	AP	Advanced Placement,Air Publication,Andhra Pradesh (Indian state code),Armed Forces Pacific (postal symbol),Associated Press,Auto Pilot
312	APB	All Points Bulletin (police jargon)
313	APEC	Asia Pacific Economic Cooperation
314	APEDS	AMSAA Performance Estimates Data System
315	APEX	Applied Physics Express
316	APHA	American Public Health Association
317	APHIS	Animal and Plant Health Inspection Service
318	APL	Acute Promyeloid Leukaemia,Anti-Personnel Landmine,Applied Physics Laboratory (Johns Hopkins University)
319	APOD	Aerial Port (Airport) Of Debarkation
320	APOE	Aerial Port (Airport) Of Embarkation
321	APOLLO	Apache Point Observatory Lunar Laser-ranging Operation
322	APP	Allied Procedural Publication
323	APR	Annual Percentage Rate
324	AQIM	Al-Qaeda in the Islamic Maghreb
325	Ar	Argon
326	ARAG	Advanced Research and Assessment Group
327	ARB	Administrative Review Board
328	ARBA	Army Review Boards Agency
329	ARCA	Automobile Racing Club of America
330	ARCENT	United States Army Central Command
331	ARDA	Advanced Research and Development Activity (became DTO 2006)
332	ARF	ASEAN Regional Forum
333	ARG	Argentina (ISO 3166 trigram)
334	ARH	Armed Reconnaissance Helicopter
335	ARNet	Acquisition Reform Network
336	ARP	Applied Research Programme
337	ARPA	Advanced Research Projects Agency
338	ARRC	ACE Rapid Reaction Corps
339	ARRF	Allied Rapid Reaction Force
340	ARRL	American Radio Relay League
341	ARSC	Arctic Region Supercomputing Center
342	ARSPACE	U.S. Army Space Command
343	ARTCC	Air Route Traffic Control Center
344	ARWG	Army Research Working Group
345	AS	ActionScript
346	AS	American Samoa (postal symbol; ISO 3166 digram),Australia (FIPS 10-4 country code),Assam / Asom (Indian state code)
347	As	Arsenic
348	aS	Attosiemens
349	ASA	AcetylSalicylic Acid,American Standards Association,Army Security Agency,Atlantic Southeast Airlines
350	ASAP	As Soon As Possible
351	ASARS	Advanced Synthetic Aperture Radar System,Airborne Search and Rescue System
352	asbl	association sans but lucratif (French 'Non-profit organisation')
353	ASBO	Anti-Social Behaviour Order
354	ASCAP	American Society of Composers,Authors,and Publishers
355	ASCC	Army Service Component Commander,Automatic Sequence Controlled Calculator,Air Standardization Coordinating Committee
356	ASCII	American Standard Code for Information Interchange
357	ASD	(U.S.) Assistant Secretary of Defense,autism spectrum disorder
358	ASDIC	Allied Submarine Detection Investigation Committee (Sonar)
359	ASEAN	Association of Southeast Asian Nations
360	ASFAR	Americans for a Society Free of Age Restrictions
361	ASG	Area Support Group
362	ASIC	Australian Securities and Investments Commission,Aviation Security Identification Card
363	ASICS	Anima sana in corpore sano (Latin for 'A sound mind in a sound body') (athletic shoe manufacturer)
364	ASIO	Australian Security Intelligence Organisation,Audio stream input output
365	ASIP	Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor
366	ASL	Above Sea Level,American Sign Language (also known as Ameslan),'Age,Sex,Location?' (Internet slang)
367	ASM	Air-to-Surface Missile,American Samoa (ISO 3166 trigram),American Society for Metals,American Society for Microbiology
368	ASMB	American Society for Matrix Biology,Adult Swim Message Board
369	ASME	American Society of Mechanical Engineers,American Society of Magazine ors
370	ASMP	Air-Sol Moyenne Portée missile (French 'Medium-range air to surface'),Asymmetric multiprocessing
371	ASN	Associate of Science in Nursing
372	ASOC	Air Sovereignty Operations Centre,Air Support Operations Centre,Airport Security and Operations Centre,Antarctic and Southern Ocean Coalition,Atlanta Symphony Orchestra Chorus,Australian Standard Offence Classification
373	ASP	Active Server Pages,American Society of Primatologists,Ammunition Supply Point,Application Service Provider (cf internet service provider),Astronomical Society of the Pacific,Association of Surfing Professionals
374	ASPI	Australian Strategic Policy Institute
375	ASR	Alkali-silica reaction,Anti Slip Regulation
376	ASRAAM	Advanced Short-Range Air-to-Air Missile
377	ASSC	Association for the Scientific Study of Consciousness
378	AST	Atlantic Standard Time (UTC−4 hours)
379	ASTIA	Armed Services Technical Information Agency
380	ASTM	American Society for Testing and Materials
381	ASTREA	Aerial Support To Regional Enforcement Agencies (sheriff's air support unit)
382	ASUW	AntiSUrface Warfare
383	ASVAB	Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA)
384	ASVEL	Association Sportive Villeurbanne Éveil Lyonnais (Association Sportive is French for 'Sporting Association'; the club was founded through the merger of AS Villeurbanne and Éveil Lyonnais)
385	ASW	AntiSubmarine Warfare
386	ASWORG	(U.S.) AntiSubmarine Warfare Operations Research Group
387	ASX	Advanced Stream Redirector,Australian Securities Exchange
388	AT	Anti-Tank,Ashmore and Cartier Islands (FIPS 10-4 territory code),Austria (ISO 3166 digram),Advanced Technology (IBM Personal Computer/AT)
389	At	Astatine
390	aT	Attotesla
391	ATA	Advanced Technology Attachment (IBM Personal Computer),Afghan Transitional Authority,Allen Telescope Array,Antarctica (ISO 3166 trigram)
392	ATAC	Air Transportable Acoustic Communications
393	ATACMS	Army TACtical Missile System
394	ATAPI	Advanced Technology Attachment Packet Interface
395	ATAS	Air-To-Air Stinger (missile)
396	ATAT	Aiken Tactical Airsoft Team / Star Wars vehicle
397	ATB	Active Time Battle,British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979)
398	ATC	Air Training Corps, U.S. Air Transport Command (1942-1948), Athletic Trainer,Certified
399	ATCCIS	Army Tactical Command and Control Information System
400	ATESS	Aerospace and Telecommunications Engineering Support Squadron
401	ATF	French Southern Territories (ISO 3166 trigram),(U.S.) Bureau of Alcohol,Tobacco,Firearms and Explosives
402	ATG	Antigua and Barbuda (ISO 3166 and FIFA trigram)
403	ATGM	Anti-Tank Guided Missile
404	ATGW	Anti-Tank Guided Weapon
405	ATK	Attack
406	ATL	Atlanta,Georgia,the largest city and capital of Georgia
407	ATLAS	All-Terrain Lifter Army System,Assessment Tool for LAnd Systems
408	ATM	Automated Teller Machine,Asynchronous Transfer Mode,At The Moment
409	ATN	Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983)
410	ATO	Air Tasking Order,Australian Taxation Office
411	ATP	Adenosine TriPhosphate,Allied Tactical Publication,Ammunition Transfer Point
412	ATSD	(U.S.) Assistant Secretary of Defense
413	ATSDR	Agency for Toxic Substances and Disease Registry
414	ATV	All-Terrain Vehicle
415	ATWA	Air,Trees,Water,Animals
416	AU	African Union (was OAU before 2000),American University,Astronomical Unit,Australia (ISO 3166 digram),Austria (FIPS 10-4 country code)
417	Au	Gold (Latin 'Aurum')
418	AUC	Ab Urbe Condita / Anno Urbis Conditae (Latin for 'from the founding of the city' / 'in the year since the founding of the city') (of Rome),Area Under the Curve (concentration time curve; medicine)
419	AUS	Australia (ISO 3166 trigram)
420	AUSCANNZUKUS	Australia,Canada,New Zealand,United Kingdom,United States (security designation)
421	Auslan	Australian Sign Language
422	AUT	Austria (ISO 3166 trigram)
423	AUTL	Army Universal Task List
424	AV	Anguilla (FIPS 10-4 territory code),Audio-Visual,Aviation
425	Av	Aperture value (photographic mode)
426	aV	Attovolt
427	AVA	American Viticultural Area
428	AVB	Audio Video Bridging
429	AVDLR	Aviation Depot Level Repair
430	AVGP	Armoured Vehicle, General Purpose
431	AVIM	Aviation Intermediate Maintenance
432	AVLB	Armoured Vehicle Launched Body
433	AVM	Air Vice-Marshal, Arteriovenous malformation
434	AVO	Apprehended Violence Order
435	AVP	Arubaanse Volkspartij
436	AVP	Association of Volleyball Professionals
437	AVRE	Armoured Vehicle Royal Engineers
438	AVTB	Armoured Vehicle Test Bed,Aviation Test Bed
439	AVUM	Aviation Unit Maintenance
440	AVVO	Acute Vaginal Venereal Outbreak
441	AW	Aruba (ISO 3166 digram)
442	aW	Attowatt
443	AWA	American Wrestling Association
444	AWC	Air Warfare Centre
445	AWD	All Wheel Drive
446	AWE	Advanced Warfighting Experiment
447	AWP	Awaiting Parts (SM&R code)
448	AWSIM	Air Warfare SIMulation
449	AWST	Australian Western Standard Time
450	AWW	Above Water Warfare
451	AX	Åland Islands (ISO 3166 digram)
452	AXP	Ambulance eXchange Point
453	AY	Antarctica (FIPS 10-4 territory code)
454	AYBABTU	All Your Base Are Belong To Us
455	AYU	As Yet Unknown
456	AZ	Arizona (postal symbol),Azerbaijan (ISO 3166 digram),Alkmaar Zaanstreek (Dutch football club)
457	AZE	Azerbaijan (ISO 3166 trigram)
458	AZUR	Actions en zone urbaine (French for: Urban Operations)
459	BAR	Barbados (IOC trigram,but not FIFA or ISO 3166),British American Racing,Browning Automatic Rifle,Buy-American Restrictions,BARD , Binational Agricultural Research and Development fund (between the US and Israel),BARDA , Biomedical Advanced Research and Development Agency,BART , Bay Area Rapid Transit,BAS , Battalion Aid Station,BASE , Building,Antenna,Span,Earth (parachute from),BASF , Badische Anilin und Soda Fabrik (Baden Aniline and Soda Factory,a German chemicals company),BASIC , Beginner's All-purpose Symbolic Instruction Code (acronym was added later,originally it was simply Basic),BAT , Basic Aid Training,BATF , U.S. Bureau of Alcohol,Tobacco,and Firearms,BATS , Behavior Analysis Training System ,Bradley Advanced Training System,BATTeRS , Bisei Asteroid Tracking Telescope for Rapid Survey,BB[edit]
460	BB	Barbados (ISO 3166 digram; FIPS 10-4 country code),Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee
461	BBB	Better Business Bureau,Blood-brain barrier
462	BBC	Breeding Bird Census,British Broadcasting Corporation,Bumper to Back of Cab (trucking measurement)
463	BBL	Be Back Later,Bird Banding Laboratory,British Basketball League
464	BBN	Bolt,Beranek and Newman
465	BBQ	Barbecue
466	BBS	Breeding Bird Survey (North America),Brigade/Battalion Battle Simulation,Bulletin Board System,BBSRC , U.K. Biotechnology and Biological Sciences Research Council,BBVA , Banco Bilbao Vizcaya Argentaria (Spanish bank)
467	BBYO	B'nai B'rith Youth Organization
468	BC	Before Christ,Blind Copy (in emailers),Boston College,Botswana (FIPS 10-4 country code; from Bechuanaland),British Columbia (postal symbol)
469	BCA	Bachelor of Computer Application,Black Coaches & Administrators
470	BCC	Blind Carbon Copy
471	BCCI	Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD , Binary-Coded Decimal
472	BEA	Banque extérieure d'Algérie,British European Airways (ancestor of British Airways),British Electricity Authority,bel
473	BEL	Belgium (ISO 3166 trigram)
474	BEN	Benin (ISO 3166 trigram)
475	BEO	Banquet Event Order
476	BERC	Business Environmental Resource Center
477	BER	Bit Error Rate
478	BH	Bahrain (ISO 3166 digram),Belize (FIPS 10-4 country code)
479	BHR	Bahrain (ISO 3166 trigram)
480	BNF	Backus-Naur Form (computing), British National Formulary
481	BNICE	Biological,Nuclear,Incendiary,Chemical,and Explosive Agents
482	BNP	British National Party,Banque Nationale de Paris,a predecessor to today's BNP Paribas
483	BNS	Bank of Nova Scotia
484	BNSF	Burlington Northern Santa Fe (also AAR reporting mark)
485	BO	Back Orifice,Belarus (FIPS 10-4 country code),Biarritz Olympique (French rugby union club),Bolivia (ISO 3166 digram),Body odor
486	BOAC	British Overseas Airways Corporation (predecessor of British Airways)
487	BoAML	Bank of America Merrill Lynch
488	BOC	British Orthodontic Society, British Oxygen Company
489	BÖC	Blue Öyster Cult
490	BODMAS	Brackets,Orders,Division,Multiplication,Addition,Subtraction
491	BOFH	Bastard Operator From Hell
492	BOGA	Bend Over and Grab Ankles
493	BOGOF	Buy One,Get One Free
494	BOGs	Bunch of Guys
495	BOI	Balance Of Investment,Basis Of Issue
496	BOL	Bolivia (ISO 3166 trigram)
497	BOM	Base Object Model,Bill Of Materials,Block of the Month quilting term,Business opportunity meeting
498	BOPD	Barrel of Oil Per Day
499	BOS	Battlefield Operating System
500	BOT	Balance of Trade,Botswana (IOC and FIFA trigram,but not ISO 3166),Build Operate Transfer,Bank of Thailand,BP[edit]
501	BP	Battle Position,British Petroleum (today,BP does not officially stand for anything),Solomon Islands (FIPS 10-4 country code; from British Protectorate of the Solomon Islands),Bp , Bishop,BPD , Bipolar Personality Disorder,BPM , Beats Per Minute,BPMo , Business Process Mobility
502	BPV	Battlefield Planning Visualization,Bovine papillomavirus
503	BQ	British Antarctic Territory (former ISO 3166 digram; merged with AQ in 1979),Caribbean Netherlands (current ISO 3166 digram; based on the entity's alternate name of Bonaire,Sint Eustatius and Saba),Navassa Island (FIPS 10-4 territory code)
504	BR	Brazil (ISO 3166 digram; FIPS 10-4 country code) ,Bihar (Indian state code),British Rail,Break Ranks (marching band term)
505	BRA	Brazil (ISO 3166 trigram)
506	BRAG	Bicycle Ride Across Georgia
507	BRASS	Breathe,Relax,Aim,Sight,Squeeze (acronym for using a rifle)
508	BRIC	Brazil, Russia, India, and China
509	BRICS	Brazil, Russia, India, China, and South Africa
510	BSA	Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area
511	BSatCoP	Benjamin Sniddlegrass and the Cauldron of Penguins
512	BSE	Bovine Spongiform Encephalopathy (better known as mad cow disease)
513	BSN	Baloncesto Superior Nacional (Spanish,'National Superior Basketball'; top Puerto Rican league),Bank Simpanan Nasional (Malay,'National Savings Bank'; government-owned Malaysian bank)
514	BSNL	Bharat Sanchar Nigam Limited,Bachelor of Science in Nursing
515	BSoD	Blue Screen of Death (distinct from BSD)
516	BSP	Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread),Business-sponsored,Bone sialoprotein
517	BST	Binary search tree,Blended Sales Tax,Bovine somatotropin,British Summer Time
518	BSW	British Standard Whitworth (screw thread)
519	BSX	Bendigo Stock Exchange
520	BT	Baal teshuva (Hebrew,'master of repentance') ,used to describe a Jew who adopts Orthodox Judaism as an adult,Bathythermograph,Bhutan (FIPS 10-4 country code; ISO 3166 digram),BitTorrent,British Telecom,the former name of the company now known as BT Group,BTDT , Been There,Done That,Bti , Bacillus thuringiensis israelensis,BTID , Battlefield Target Identification Device,BTIS , Battlefield Target Identification System
521	Bt	Baronet,Bacillus thuringiensis
522	BTO	Built To Order
523	BTP	British Transport Police
524	BTR	Bronetransporter (БТР = Бронетранспортер '(Heavy) Armoured (Personnel) Transporter')
525	BTU	British Thermal Unit
526	BTW	By The Way
527	BU	Bulgaria (FIPS 10-4 country code) -,Burma (ISO 3166 digram; obsolete since 1989)
528	BUAV	British Union for the Abolition of Vivisection
529	BUG-E	Battlefield Universal Gateway Equipment ('buggy')
530	BUNO	Bureau Number (aircraft serial number)
531	BUR	Burma (ISO 3166 trigram; obsolete since 1989)
532	BV	Background Vocals -,Battlefield Visualization ,,Bouvet Island (ISO 3166 digram; FIPS 10-4 territory code)
533	BVD	Bradley,Voorhees & Day (underwear manufacturer)
534	BVR	Beyond Visual Range
535	BVT	Bouvet Island (ISO 3166 trigram)
536	B&W	Babcock & Wilcox, Black and White, Bowers & Wilkins
537	BW	Bring Wedges (ISO digram)
538	BW	Botswana (ISO 3166 digram)
539	BWA	Botswana (ISO 3166 trigram)
540	BWARS	Bees,Wasps & Ants Recording Society
541	BWC	Biological and Toxin Weapons Convention
542	BWR	Boiling-Water Reactor
543	BX	Base eXchange
544	BY	Burundi (FIPS 10-4 country code), Belarus (ISO 3166 digram), Bavaria
545	BYOB	Bring Your Own Bottle (or beer, beverage, or booze) (multiple,but similar,meanings)
546	BYOC	Bring Your Own Computer (play on BYOB)
547	BYOF	Bring Your Own Flask
548	BYS	Byelorussian Soviet Socialist Republic (ISO 3166 trigram; obsolete since 1992)
549	BYU	Brigham Young University
550	BZ	Belize (ISO 3166 digram)
551	BZP	Benzylpiperazine
552	C	Carbon, Coulomb, One Hundred (in Roman numerals)
553	c	Centi
554	C2C	Consumer-To-Consumer electronic commerce, Cam-To-Cam internet chat
555	c2c	the British rail company formerly known as LTS Rail
556	Ca	Calcium
557	CA	California (postal symbol),Canada (FIPS 10-4 country code; ISO 3166 digram),Catalonia,Civil Affairs,Close Armour,Cocaine Anonymous,Computer Associates,Counter-Air,Cricket Australia
558	CAA	Canadian Automobile Association,(NORAD) Center for Aerospace Analysis,(U.S.) Center for Army Analysis,(U.S.) Clean Air Act,(U.S. Army) Concepts Analysis Agency,Civil Aviation Authority,Colonial Athletic Association
559	CAAT	Campaign Against Arms Trade,Center for Alternatives to Animal Testing
560	CAC	California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier
561	CACM	Central American Common Market
562	CACM	Communications of the ACM
563	CADCAM	Computer-Aided Design/Computer-Aided Manufacturing
564	CADMID	Concept,Assessment,Demonstration,Manufacture,In service,Disposal (life cycle mnemonic)
565	CADPAT	CAnadian Disruptive PATtern
566	CAE	Canadian Aviation Electronics (originally),Certificate in Advanced English
567	CAEn	Close Action Engagement (constructive simulation)
568	CAF	Central African Republic (ISO 3166 trigram),Confederation of African Football (or French Confédération Africaine de Football)
569	CAFAD	Combined Arms For Air Defence
570	CAFDE	Canadian Association of Film Distributors and Exporters,Computer Aided Federation Development Environment
571	CAFE	Corporate Average Fuel Economy standard
572	CAI	Computer Assisted Instruction
573	CAIR	Council on American-Islamic Relations
574	CALABARZON	A region in the Philippines: CAvite,LAguna,BAtangas,Rizal,queZON
575	CALL	Center for Army Lessons Learned
576	CALM	Communications,Air-interface,Long and Medium range
577	CalPERS	California Public Employees' Retirement System
578	Caltrans	California Department of Transpotation
579	CAM	Chemical Agent Monitor,Complementary and alternative medicine,Computer-Aided Manufacturing,Crassulacean acid metabolism (type of photosynthesis)
580	CAMRA	CAMpaign for Real Ale
581	CAN	Canada (ISO 3166 trigram)
582	CANDU	CANada Deuterium Uranium (nuclear reactor design)
583	Canola	Canadian oil,low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content)
584	CAPES	CAPability Evaluation System,Combined Arms Planning and Execution System
585	CARE	Citizens Association for Racial Equality (former New Zealand organisation),Community database on Accidents on the Roads in Europe,Cooperative for Aid and Relief Everywhere (originally Cooperative for American Remittances to Europe)
586	CARMONETTE	Computerized Monte Carlo Simulation
587	CARP	Computed Air Release Point
588	CART	Championship Auto Racing Teams (now defunct)
589	CAS	Chemical Abstracts Service,Chief of the Air Staff,Close Air Support
590	CASA	Civil Aviation Safety Authority
591	CASE	Cellular ammunition storage equipment,Computer-Aided Software Engineering
592	CASS	Command Activated Sonobuoy System
593	CASTFOREM	Combined Arms and Support Task FORce Evaluation Model
594	CASTOR	Canadian Automatic Small Telescopes for Orbital Research
595	CAT	Community Acceptance Testing
596	CATK	Counterattack
597	CATS	Computer Active Technology Suspension
598	CATT	Combined Arms Tactical Trainer
599	CAV	Cavalry
600	CAVOK	Ceiling And Visibility OK ('Kav-okay')
601	CAW	Canadian Auto Workers (trade union)
602	CB	Citizens' Band radio,Cambodia (FIPS 10-4 country code)
603	CBASSE	Commission on Behavioral And Social Sciences and Education ('sea bass')
604	CBC	Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control
605	CBE	Commander of the Order of the British Empire,Cab Beside Engine (see truck)
606	CBF	Confederação Brasileira de Futebol (Portuguese,'Brazilian Football Confederation')
607	CBGB	Country,Blue Grass,and Blues (former New York City nightclub)
608	CBLA	Comparative bullet lead analysis
609	CBM	Canadian Baptist Ministries
610	CBM	Commodore Business Machines
611	CBML	Coalition Battle Management Language
612	CBN	CardsApp Brand Number
613	CBOL	Consortium for the Barcode of Life
614	CBOT	Chicago Board of Trade
615	CBR	Case-Based Reasoning
616	CBRN	Chemical,Biological,Radiological,or Nuclear (weapon or event)
617	CBRNE	Chemical,Biological,Radiological,Nuclear or [high-yield] Explosive (weapon or event)
618	CBS	Columbia Broadcasting System,Corps Battle Simulation
619	CBUS	Columbus,Ohio
620	CC	carbon copy
621	CCA	Counter Command Activity
622	CCC	Canterbury Clothing Company,Civilian Conservation Corps (U.S.,1930s and 1940s),Corpus Christi College,Oxford
623	CCCP	Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik,Russian Союз Советских Социалистических Республик,Union of Soviet Socialist Republics)
624	CCD	Charge-Coupled Device,Confraternity of Christian Doctrine (Catechism)
625	CCF	Cartoon Cartoon Fridays
626	CCG	Canadian Coast Guard,Collectible Card Game
627	CCGC	Canadian Coast Guard Cutter,Canadian Coast Guard College
628	CCGH	Canadian Coast Guard Hovercraft
629	CCGS	Canadian Coast Guard Ship,Christ Church Grammar School
630	CCH	Computer-Controlled Hostile
631	CCIF	Comité consultatif international des communications téléphoniques à grande distance (French for International Telephone Consultative Committee,merged with the CCIT in 1956 to form the CCITT)
632	CCII	Command and Control Information Infrastructure,Community Capital Investment Initiative
633	CCIR	Comité consultatif international pour la radio (French for Consultative Committee on International Radio,became the ITU Radiocommunication Sector,ITU-R,in 1992),Commander's Critical Information Requirements
634	CCIT	Comité consultatif international télégraphique (French for International Telegraph Consultative Committee,merged with the CCIF in 1956 to form the CCITT)
635	CCITT	Comité consultatif international téléphonique et télégraphique (French for International Telegraph and Telephone Consultative Committee,became the ITU Telecommunication Standardization Sector,ITU-T,in 1992)
636	CCK	Cholecystokinin,Cocos (Keeling) Islands (ISO 3166 trigram)
637	CCM	Canada Cycle & Motor Co. Ltd. (now split into two separate companies bearing the CCM name,one manufacturing bicycles and the other ice hockey equipment),Contemporary Christian music
638	CCOC	Canadian Children's Opera Chorus,Crosley Car Owners Club
639	CCOP	Coalition Common Operating/Operational Picture
640	CCP	Casualty Collection Point,Communications Checkpoint,Contingency Communications Package
641	CCPA	Consumer Credit Protection Act
642	CCR	Creedence Clearwater Revival
643	CCRAp	Canadian Conservative Reform Alliance party
644	CCRP	Command and Control Research Program
645	CCRTS	Command and Control Research and Technology Symposium
646	CCSCS	Consultative Committee for Space Data Systems
647	CCSCS	Coordinadora de Centrales Sindicales del Cono Sur
648	CCSIL	Command and Control Simulation Interface Language ('cecil')
649	CCSK	Cyclic Code Shift Keying
650	CCT	Current Commitments Team
651	Cd	Cadmium
652	cd	Candela
653	CD	Compact Disc
654	CD1	Cluster of Differentiation 1 (a small gene family)
655	CDA	UK Centre for Defence Analysis
656	CDD	Capabilities Development Document
657	CDE	Chemical Defence Equipment
658	CDIAC	Carbon Dioxide Information Analysis Center ('see-dee-ack')
659	CDipAF	Certified Diploma in Accounting and Finance
660	CDL	Commercial driver's license
661	CDM	Clean Development Mechanism (Kyoto protocol), Cold Dark Matter (astronomy)
662	CDMA	Code Division Multiple Access
663	CDMSII	Cryogenic Dark Matter Search II
664	Cdr	Commander
665	CDT	Central Daylight Time (UTC−5 hours)
666	Cdt	Commandant
667	Ce	Cerium
668	CE	Christian/Common Era
669	CEA	Campaign Effectiveness Analysis
670	CECOM	U.S. Army Communications and Electronics Command
671	CEDEX	Courrier d'entreprise à distribution exceptionnelle (French,'Company Mail with Exceptional Distribution'; 'exceptional' refers to the volume of mail)
672	CEGEP	Collège d'enseignement général et professionnel (French,'College of General and Vocational Education')
673	CEI	Competitive Enterprise Institute
674	CENTCOM	United States Central Command
675	CENTO	Central Treaty Organization (Baghdad Pact)
676	CENZUB	Centre d'entraînement aux actions en zone urbaine (French,'Urban Operations Training Centre')
677	CEO	Chief Executive Officer
678	CEP	Circular Error Probable
679	CEPT	Conférence européenne des administrations des postes et des télécommunications (French,'European Conference of Postal and Telecommunications Administrations')
680	CERCLA	U.S. Comprehensive Environmental Response,Compensation,and Liability Act (Superfund)
681	CERDEC	U.S. Communications-Electronics Research,Development and Engineering Center
682	CERGA	Centre de recherches en géodynamique et astrométrie (French,'Astrometry and Geodynamics Research Centre')
683	CERN	Centre européen pour la recherche nucléaire (French,'European Organization for Nuclear Research')
684	CERT	Computer Emergency Response Team
685	CESS	Centre for Earth Science Studies (India)
686	CEST	Central European Summer Time
687	CET	Central European Time
688	CEWC	Council for Education in World Citizenship
689	Cf	Californium
690	CF	Canadian Forces,Central African Republic (ISO 3166 digram),Republic of the Congo (FIPS 10-4 country code)
691	CFA	Cat Fanciers' Association,Chartered Financial Analyst,Colour Filtering Array,County Fire Authority,Covering Force Area
692	CFAR	Christine's,Federal Acquisition Regulation
693	CFC	ChloroFluoroCarbon,Canadian Fish Company
694	CFES	Continuous Flow Electrophoresis System
695	CFFZ	Call For Fire Zone
696	CFG	Context-free grammar,Control flow graph
697	CFHT	Canada-France-Hawaii Telescope
698	CFI	Center for Inquiry (CSICOP)
699	CFL	Canadian Football League,Co-ordinated Fire Line
700	CFLCC	Coalition Forces Land Component Command
701	CFM	Certified Facilities Manager
702	CFO	Chief Financial Officer
703	CFP	Call for papers, College Football Playoff, Common Fisheries Policy (EU)
704	CFR	Code of Federal Regulations,Căile Ferate Române (Romanian,'Romanian Railways')
705	CFRP	Carbon fibre reinforced plastic
706	CFS	Chronic Fatigue Syndrome
707	CFSP	Common Foreign and Security Policy
708	CFU	Colony Forming Unit in Microbiology
709	CFV	Cavalry Fighting Vehicle
710	CFZ	Critical Friendly Zone
711	CG	Client Group,Computer Graphics,Controls Group,Democratic Republic of the Congo (FIPS 10-4 country code),Republic of the Congo (ISO 3166 digram)
712	CGH	Comparative Genomic Hybridisation
713	CGIG	Cross-Government Implementation Group
714	CGO	Republic of the Congo (IOC and FIFA trigram,but not ISO 3166)
715	CGS	Chief of the General Staff
716	CGT	Capital Gains Tax
717	ch	ch(L) is used to denote the Chern character of a line bundle
718	CH	Chieftain tank,China (FIPS 10-4 country code),Switzerland (ISO 3166 digram; from Latin Confoederatio Helvetica)
719	CHAMPUS	(U.S.) Civilian Health and Medical Program of the Uniformed Services (now known as TRICARE)
720	CHAOS	Cambridge Heart Anti-Oxidant Study
721	CHAPS	Clearing House Automated Payment System
722	CHDK	Canon Hack Development Kit (Canon camera firmware hack)
723	CHE	Switzerland (ISO 3166 trigram; from Latin Confoederatio Helvetica)
724	CHI	Columbia Helicopters,Inc
725	CHiP	California Highway Patrol
726	CHIPS	Cosmic Hot Interstellar Plasma Spectrometer
727	CHL	Chile (ISO 3166 trigram)
728	CHLA	Core Historical Literature of Agriculture
729	CHN	China (ISO 3166 trigram)
730	CHOGM	Commonwealth Heads of Government Meeting
731	CHPSO	California Hospital Patient Safety Organization
732	CHRS	Canadian Heart Rhythm Society
733	CHT	Certified Hand Therapist
734	CI	Chile (FIPS 10-4 country code),Côte d'Ivoire (ISO 3166 digram),Counter-Intelligence,101 (in Roman numerals)
735	Ci	Curie
736	CIA	U.S. Central Intelligence Agency, Cairo International Airport, Culinary Institute of America
737	CIAO	Critical Infrastructure Assurance Office,Component-Integrated ACE ORB
738	CIB	Complete In Box (Internet auction/trading listings)
739	CIBC	Canadian Imperial Bank of Commerce
740	CICS	Customer Information Control System (IBM mainframe software; 'kicks' or 'C-I-C-S')
741	CID	Certified Interior Designer
742	CIEF	Comité international d'enregistrement des fréquences (International Frequency Registration Board)
743	CIF	Cost,Insurance,and Freight (Paid) (shipping)
744	CIMMYT	Centro Internacional de Mejoramiento de Maíz Y Trigo (Spanish,'International Maize and Wheat Improvement Center')
745	CINC	Commander in Chief
746	CINEOS	Campo Imperatore Near-Earth Object Survey
747	CIO	Chief information officer,Congress of Industrial Organizations
748	CIPE	(European) Centre for International Political Economy
749	CIR	(Commander's) Critical Information Requirements
750	CIR	Corotating Interaction Region
751	CIS	Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System
752	CISA	(U.S.) C4I Integration Support Activity
753	CISB	Complete In Sealed Box (Internet auction/trading listings)
754	CISPR	Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference)
755	CISSP	Certified Information Systems Security Professional
756	CITES	Convention on International Trade in Endangered Species (of Wild Fauna and Flora) ('sigh-tease')
757	CIV	Côte d'Ivoire (ISO 3166 trigram)
758	CIVETS	Colombia,Indonesia,Vietnam,Egypt,Turkey,South Africa (economics)
759	CIVPOP	Civilian Population
760	CIWS	Close-In Weapon System
761	CJ	Cayman Islands (FIPS 10-4 country code),Criminal Justice
762	CJC	Canadian Jewish Congress,Cold Junction Compensation
763	CJCS	Chairman of the Joint Chiefs of Staff
764	CJD	Chronological Julian Day,Creutzfeldt-Jakob Disease
765	CJO	Chief of Joint Operations
766	CJTF	Combined Joint Task Force
767	CK	Cocos (Keeling) Islands (FIPS 10-4 country code),Cook Islands (ISO 3166 digram)
768	CKA	commonly known as, Canada Kicks Ass
769	CKND	Codename: Kids Next Door
770	CL	Chile (ISO 3166 digram),Co-ordination Line,One Hundred and Fifty (in Roman numerals)
771	Cl	Chlorine
772	CLA	Clutterers Anonymous
773	CLEC	Competitive Local Exchange Carrier
774	CLEMARS	California Law Enforcement Mutual Aid Radio System
775	CLIC	Compact LInear Collider
776	CLO	Cornell Lab of Ornithology
777	CLOS	Command to Line-Of-Sight (missile control system)
778	CLPFC	CentroLateral PreFrontal Cortex
779	CLRP	College Loan Repayment Program
780	CM	Cameroon (FIPS 10-4 country code; ISO 3166 digram),Cruise Missile,Nine Hundred (in Roman numerals)
781	Cm	Curium
782	CMA	U.S. Chemical Materials Agency,Country Music Association (also used to refer to the organization's annual awards),Crystal Meth Anonymous
783	CMHC	Canada Mortgage and Housing Corporation
784	CMIIAW	Correct me if I am wrong
785	CMIS	Common management information service
786	CMJ	Christopher Martin-Jenkins (BBC sports commentator)
787	CMLL	Consejo Mundial de Lucha Libre (Spanish,'Worldwide Wrestling Council'—Mexican professional wrestling promotion)
788	CMM	Capability Maturity Model
789	CMMC	Corps Materiel Management Centre
790	CMML	Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language
791	CMOS	Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor
792	CMP	Common [Operating/Operational] Maritime Picture
793	CMPD	Charlotte Mecklenburg Police Department
794	CMPD	Chronic Myeloproliferative Disease
795	CMR	Cameroon (ISO 3166 trigram),Coaxial Main Rotors (helicopter type)
796	CMS	Centers for Medicare and Medicaid Services,The Chicago Manual of Style
797	CMT	Country Music Television
798	CMU	Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit
799	CMW	Marconi's Wireless Telegraph Company of Canada,Canadian Manufacturing Week,Canadian Music Week,Catherine McAuley Westmead (school in New South Wales,Australia),Chicago,Missouri and Western (Railway),Compartmented Mode Workstation,Compton's Most Wanted,Continuous Microwave (processing technology),Custom Maintenance Wizard (Microsoft Office Resource Kit)
800	CMYK	Cyan Magenta Yellow Key/blacK (colour model)
801	CN	Canadian National (railway; also the AAR reporting mark for said company),China (ISO 3166 digram),Comoros (FIPS 10-4 country code)
802	CNA	Center for Naval Analyses,Certified Network Administrator,Computer Network Attack,Continental (Casualty Company),National (Fire Insurance Company),and American (Casualty Company),the three companies that merged to form what is now known as CNA Financial
803	CNBC	Consumer News and Business Channel
804	CND	Campaign for Nuclear Disarmament,Computer Network Defence
805	CNE	Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer
806	CNF	Cost and Freight
807	CNI	Clinical Nursing Intern
808	CNI	Communications,Navigation and Identification
809	CNN	Cable News Network,Cellular Nonlinear Network
810	CNV	Copy-Number Variable (genetics)
811	Co	Cobalt
812	COB	Close Of Business [day]
813	COBRA	Consolidated Omnibus Budget Reconciliation Act of 1985
814	COD	Cash On Delivery,Democratic Republic of the Congo (ISO 3166 trigram)
815	CoDA	Co-Dependents Anonymous
816	COGENT	Cognitive Objects within a Graphical EnviroNmenT
817	COIL	Chemical Oxygen Iodine Laser
818	COK	Cook Islands (ISO 3166 trigram)
819	COL	Colombia (ISO 3166 trigram)
820	COLA	Cost Of Living Adjustment
821	CONAD	U.S. Continental Air Defense Command
822	CONMEBOL	Confederación Sudamericana de Fútbol or Confederação Sul-Americana de Futebol (respectively Spanish and Portuguese for 'South American Football Confederation')
823	CONUS	Continental United States
824	COO	Chief Operating Officer
825	COPE	U.K. Committee On Publication Ethics
826	COPUS	U.K. Committee on the Public Understanding of Science
827	CORD	Common Operational Requirements Document
828	CORE	Consortium for Oceanographic Research and Education
829	COS	Cooper Ornithological Society
830	COSER	COoperative SERvice
831	CoT	Car of Tomorrow (former NASCAR race car design)
832	COTS	Commercial Off The Shelf
833	CP	Canadian Pacific,Check Point,Command Post,Club Penguin
834	CPA	Certified Public Accountant
835	CPAC	Conservative Political Action Conference,Cable Public Affairs Channel ('see-pack')
836	CPCU	Certified Property Casualty Underwriter
837	CPD	Capabilities Production Document
838	CPE	Certificate of Proficiency in English
839	CPE	Certified Professional Ergonomist
840	CPF	Calibration Parameter File,Canadian Patrol Frigate
841	CPG	Clinical Practice Guideline
842	CPIM	Certification on Production and Inventory Management
843	CPIR	Computationally-Private Information Retrieval
844	CPON	Certified Pediatric Oncology Nurse
845	CPPCC	Chinese People's Political Consultative Conference
846	CPR	Canadian Pacific Railway
847	CPR	Cardiopulmonary resuscitation
848	CPSM	Continuous Phase Shift Modulation
849	CPSU	Communist Party of the Soviet Union
850	CPT	Contingency Planning Team
851	CPU	Contract Postal Unit
852	CPV	Cape Verde (ISO 3166 trigram)
853	CPX	Command Post eXercise
854	CQ	Carrier Qualification,Central Queensland,Charge of Quarters,Congressional Quarterly,Constellation Airlines (IATA airline designator),Northern Mariana Islands (FIPS 10-4 territory code)
855	CQD	Close Quarters Drill (Morse distress code preceding SOS: CQ 'calling all stations',D 'Distress'; often incorrectly interpreted as 'Come Quick,Distress')
856	Cr	Chromium
857	CR	Coral Sea Islands (FIPS 10-4 territory code),Costa Rica (ISO 3166 digram)
858	CRAM	Combined Radiometric Correction Model
859	CRD	Capstone Requirements Document
860	CREB	Cyclic AMP-response Element Binding (protein)
861	CREEP	Committee for the Re-Election of the President,a pejorative nickname used by opponents
862	CREN	Christian Real Estate Network Real Estate Association
863	CRI	China Radio International,Costa Rica (ISO 3166 trigram)
864	CRIPL	Consolidated Remain-In-Place List
865	CRM	Cardiac Rhythm Management,Customer Relationship Management
866	CRO	Croatia (IOC and FIFA trigram,but not ISO 3166)
867	CRP	Committee for the Re-Election of the President,Control and Reporting Post
868	CRT	Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem
869	CRTC	Canadian Radio-television and Telecommunications Commission
870	Cs	Caesium
871	CSA	Canadian Soccer Association,Canadian Space Agency,Canadian Standards Association,Child Support Agency,Command Staff Advisor,Community-supported agriculture,Confederate States of America,Corps Storage Area,Czech Airlines,C/S/A,CINC,Service,and Agency
872	CSC	Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists
873	CSERIAC	(U.S. DoD) Crew Systems Ergonomics Information Analysis Center
874	CSG	Corps Support Group
875	CSI	see entry
876	CSICOP	Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006)
877	CSIP	Commercial Stable Image Platform (AMD)
878	CSIS	Canadian Security Intelligence Service ('seessiss'),(U.S.) Center for Strategic & International Studies
879	CSK	Czechoslovakia (ISO 3166 trigram; obsolete since 1993)
880	CSL	U.K. Central Science Laboratory
881	CSPI	Center for Science in the Public Interest
882	CSR	Control Supply Rate
883	CSR	Corporate Social Responsibility
884	CSRC	Conflict Studies Research Centre
885	CSRF	Cross-Site Request Forgery
886	CST	Central Standard Time (UTC−6 hours)
887	CT	Computed tomography (medical scan also known as a CAT scan),Central Time zone,Chrono Trigger (Computer/Video games),Connecticut (postal symbol),Canterbury (postal symbol),Chhattisgarh (Indian state code)
888	CTA	Central African Republic (FIFA trigram,but not ISO 3166 or IOC),Chicago Transit Authority,Comando-Geral de Tecnologia Aerospacial (Portuguese,[Brazilian] 'General Command for Aerospace Technology')
889	CTBT	Comprehensive [Nuclear] Test Ban Treaty
890	CTDB	Compact Terrain Data Base (file format)
891	CTE	Canton and Enderbury Islands (ISO 3166 trigram; obsolete 1984),Chronic traumatic encephalopathy
892	CTGF	connective tissue growth factor
893	CTI	Co-operative Target Identification
894	CTIL	Critical Tracked Items List
895	CTIS	Central Tire Inflation System
896	CTMS	Clinical Trial Management System
897	CTO	Chief Technical Officer,Chief Technology Officer
898	CTS	Clear-To-Send,Collective Training Standards,Communications Technology Service,Contract Technical Services,Conversation Time Sharing,COSMIC Top Secret
899	CTSS	Compatible Time-Sharing System
900	CTU	Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24)
901	CTVT	Canine Transmissible Venereal Tumour
902	Cu	Copper (Latin 'Cuprum')
903	CUB	Cuba (ISO 3166 trigram)
904	CUCV	Commercial Utility Cargo Vehicle
905	CUNY	City University of New York ('CUE-knee')
906	CUPE	Canadian Union of Public Employees ('CUE-pee')
907	CUPS	Common Unix Printing System
908	CUPW	Canadian Union of Postal Workers
909	CUREA	Consortium for Undergraduate Research and Education in Astronomy
910	CuW	Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements)
911	CUW	Curaçao (ISO 3166 trigram)
912	CV	curriculum vitae (résumé)
913	CVLL	Crypto Variable Logic Label
914	CVSD	Continuous Variable Slope Delta (modulation)
915	CVT	Continuously Variable Transmission
916	CW	Calendar Week, or: Continuous Wave, or: Clothes Washer, or: Cook Islands (FIPS 10-4 territory code)
917	CWC	Chemical Weapons Convention
918	CWRU	Case Western Reserve University
919	CWS	Canadian Wildlife Service
920	CX	Christmas Island (ISO 3166 digram),or: One Hundred and Ten (in Roman numerals)
921	CXR	Christmas Island (ISO 3166 trigram)
922	CY	Calendar year, or: Cyprus (ISO 3166 and FIPS 10-4 country code digram)
923	CYM	Cayman Islands (ISO 3166 trigram)
924	CZE	Czech Republic (ISO 3166 trigram)
925	CZF	(Christian Zombie Fan)
926	CZMA	(US) Coastal Zone Management Act
927	d	Deci
928	D	Deuterium
929	DADVSI	Loi sur le droit d’auteur et les droits voisins dans la société de l’information (French,'Law on copyrights and related rights in the information society')
930	DAES	Defence Acquisition Executive Summary,(UK MoD) Directorate of Analysis,Experimentation and Simulation
931	DAF	Dissolved Air Flotation,a technique used in water treatment
932	DAFIF	Digital Aeronautical Flight Information File
933	DAK	Disney's Animal Kingdom
934	DAO	Division Ammunition Officer
935	DAQ	Data acquisition,Delivered Audio Quality
936	DARE	Drug Abuse Resistance Education
937	DARO	(U.S.) Defense Airborne Reconnaissance Office
938	DARPA	U.S. Defense Advanced Research Projects Agency
939	DART	Disaster Assistance Response Team,Dublin Area Rapid Transit
940	DAS	Defensive Aids Suite
941	DASD	(U.S.) Deputy Assistant Secretary of Defense
942	DASL	Datapoint's Advanced Systems Language
943	DAU	(U.S.) Defense Acquisition University
944	DAWN	(U.S.) Drug Abuse Warning Network
945	dB	Decibel
946	DB	Deutsche Bahn
947	Db	Dubnium
948	DBA	De Bellis Antiquitatis (miniature wargaming rules)
949	DBBL	(U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
950	DBDO	Desert BDO
951	DBE	Dame Commander of the Order of the British Empire
952	DBF	Detection By Fire (weapon launch signature)
953	DBR	De Bellis Renationis (miniature wargaming rules)
954	DBRA	Davis-Bacon Related Acts
955	DBS	Direct Broadcast Services (television)
956	DC	da capo,Italian Democrazia Cristiana,Digital Compass,Direct Current,District of Columbia (postal symbol),Douglas Aircraft Company,Dublin Core,Duty Cycle
957	DCA	Defensive Counter Air,Drum Corps Associates,DiChloroAcetate
958	DCAA	(U.S.) Defense Contract Audit Agency
959	DCAS	Devon and Cornwall Archery Society
960	DCC	Dallas Christian College
961	DCD	[Organ] Donation after Cardiac Death
962	DCE	Data Communication Equipment
963	DCFC	Death Cab for Cutie
964	DCI	Detection,Classification and Identification,Drum Corps International,Duellists' Convocation International,now known simply by the initials
965	DCL	Disney Cruise Line
966	DCN	Deacon
967	DCOM	Disney Channel Original Movie
968	DCSOPS	Deputy Chief of Staff for Operations and plans
969	DCW	Digital Chart of the World
970	DCYSC	Discovery Channel Young Scientist Challenge
971	DD	due diligence and dear daughter (increasingly prevalent on social mailing lists,blogs,and bulletin boards)
972	DDA	Deputy District Attorney
973	DDN	U.S. Defense Data Network
974	DDS	Doctor of Dental Surgery
975	DDT	Dichloro-Diphenyl-Trichloroethane (insecticide),Dynamic Debugging Tool (computing),DE[edit]
976	DE	Delaware (postal symbol),Germany (ISO 3166 digram)
977	DEA	Drug Enforcement Administration
978	DEA	Drug Enforcement Agency
979	DEC	Department of Environmental Conservation,Digital Equipment Corporation,Disasters Emergency Committee
980	DeCA	(U.S.) Defense Commissary Agency
981	DEFCON	Defence readiness condition
982	DEFRA	(UK) Department for Environment,Food and Rural Affairs
983	DELT	Dual Ended Line Test (ing)
984	DEM	Data Exchange Mechanism,Digital Elevation Model
985	DEN	Denmark (IOC and FIFA trigram,but not ISO 3166)
986	DEPSECDEF	(U.S.) Deputy Secretary of Defense
987	DERA	British Defence Evaluation and Research Agency (1995-2001)
988	DES	Deep Ecliptic Survey
989	DEU	Germany (ISO 3166 trigram)
990	DF	Direct Fire,Direction Finding,Distrito Federal (Spanish and Portuguese for 'federal district')
991	DFAS	(U.S.) Defense Finance and Accounting Service
992	DFB	Deutscher Fußball-Bund (German for 'German Football Association')
993	DFCB	Data Format Control Book
994	DfID	UK Department for International Development
995	DFM	Discrete Field Model see Superluminal motion
996	DFM	Dynamic Flowgraph Methodology
997	DFSP	Dermatofibrosarcoma protuberans
998	DfT	UK Department for Transport
999	DFTBA	Don't Forget To Be Awesome,a term commonly used by the Vlogbrothers
1000	DG	Dei gratia (Latin,'by the grace of God'),Director-General,Data General
1001	DGA	Direction générale des armées (French 'Armed Forces General Directorate')
1002	DGPS	Differential GPS
1003	DGZ	Desired Ground Zero
1004	DHA	DocosaHexaenoic Acid
1005	DHHS	(U.S.) Department of Health and Human Services
1006	DHRA	(U.S.) DoD Human Resources Activity
1007	DHS	U.S. Department of Homeland Security
1008	DHSS	UK Department of Health and Social Security
1009	DHTFYSS	U.S. Don't Have Time For You Silly S****
1010	DHY	Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
1011	DIA	U.S. Defense Intelligence Agency
1012	DIAC	Department of Immigration and Citizenship (Australia) [1]
1013	DiC	Design Island Centre (computing usually used in a teaching situation)
1014	DICASS	DIrectional Command Activated Sonobuoy System
1015	DIFAR	DIrectional Frequency Analysis and Recording
1016	DIME	Dense Inert Metal Explosive
1017	DIP	Dual In-line Package (electronics)
1018	DIPS	Defense independent pitching statistics
1019	DIR	Defence Industrial Research
1020	DISCOM	Division Support Command
1021	DISE	Deployable Intelligence Support Element
1022	DISSTAF	DIS Search and Target Acquisition Fidelity experiment
1023	DITY	Do-It-Yourself
1024	DIVAD	Division Air Defence
1025	DIY	Do It Yourself
1026	DJI	Djibouti (ISO 3166 trigram)
1027	DK	Denmark (ISO 3166 digram)
1028	DL	Dexter's Laboratory
1029	DLIC	Detachment Left-In-Contact
1030	DLIR	Depot-Level Inspection and Repair
1031	DLPMC	DorsoLateral PreMotor Cortex
1032	DLRP	Data Link Reference Point
1033	DLS	Deep Lens Survey
1034	DLSA	(U.S.) Defense Legal Services Agency
1035	DLSc	Diploma in Library Science
1036	DLTBGYD	Don't let the bastards grind you down
1037	DMC	(U.S.) Defense Management Council
1038	DMCA	Digital Millennium Copyright Act
1039	DMM	Digital Multimeter
1040	DMOC	Distributed Mission Operations Centre
1041	DMPA	(U.S.) Defense Medical Programs Activity
1042	DMPFC	DorsoMedial PreFrontal Cortex
1043	DMPK	Drug Metabolism and Pharmacokinetics
1044	DMRB	Design Manual for Roads and Bridges
1045	DMS	U.S. Defense Message System
1046	DMSP	U.S. Defense Meteorological Satellite Program
1047	DMT	Dimethyltryptamine
1048	DMV	Department of Motor Vehicles
1049	DMZ	DeMilitarized Zone
1050	DN	Deacon
1051	DNAW	Day Night All Weather
1052	DNDi	Drugs for Neglected Diseases initiative
1053	DNDO	U.S. Domestic Nuclear Detection Office
1054	DNK	Denmark (ISO 3166 trigram)
1055	DNM	Defence Nuclear Material
1056	DNR	Do Not Resuscitate
1057	DNS	Domain Name System
1058	DOB	Date Of Birth
1059	DOD	U.S. Department of Defense
1060	DODAF	U.S. Department of Defense Architectural Framework
1061	DoDD	U.S. Department of Defense Directive
1062	DoDEA	(U.S.) Department of Defense Education Activity
1063	DOE	U.S. Department of Energy
1064	DOHC	Dual-OverHead-Cam engine
1065	DOI	U.S. Department of the Interior
1066	DORA	Defence of the Realm Act
1067	DOS	Density of State
1068	DOTA	short-form for DEFENSE OF THE ANCIENTS a popular online epic game
1069	DotD	Deal of the Day (marketing gimmick)
1070	DOW	Died of Wounds
1071	DP	Division de production (Algerian petroleum company)
1072	DPA	UK Defence Procurement Agency
1073	DPCO	Double-Pole Change Over
1074	DPDT	Double-Pole Double-Throw
1075	DPI	Dots Per Inch
1076	DPICM	Dual-Purpose Improved Conventional Munition
1077	DPKO	UN Department for Peacekeeping Operations
1078	DPMO	(U.S.) Defense Prisoner of War/Missing Personnel Office
1079	DPPDB	Digital Point Positioning Database
1080	DPRK	Democratic People's Republic of Korea
1081	DPST	Double-Pole Single-Throw
1082	DRC	Democratic Republic of the Congo
1083	DRDC	Defence Research & Development Canada
1084	DREA	Defence Research Establishment Atlantic (obsolete 2002)
1085	DRES	Defence Research Establishment Suffield (obsolete 2002)
1086	DRET	Defence Research Establishment Toronto (obsolete 2002)
1087	DREV	Defence Research Establishment Valcartier (obsolete 2002)
1088	DRIC	(U.S.) Defense Research Information Center
1089	DRMS	(U.S.) Defense Revitalization and Marketing Service
1090	DRPR	Drawing Practices
1091	DRT	Document Related Technologies
1092	Ds	Darmstadtium
1093	DSAS	Disney Sing Along Songs
1094	DSB	(U.S.) Defense Science Board
1095	DSCS	U.S. Defense Satellite Communications System
1096	DSCSOC	DSCS Operations Center
1097	DSE	Dry Sheep Equivalent
1098	DSG	Direct-Shift Gearbox
1099	DSID	Dismounted Soldier Identification System
1100	DSL	Digital Subscriber Line
1101	DSLR	Digital single-lens reflex (camera)
1102	DSM	Diagnostic and Statistical Manual of Mental Disorders
1103	DSN	Deep Space Network
1104	DSPL	Design Specialists and Plans Language
1105	DSR	Deformed Special Relativity
1106	DST	Daylight Saving Time
1107	DSTL	British Defence Science and Technology Laboratory
1108	DSWA	(U.S.) Defense Special Weapons Agency
1109	DTA	Dental Technologists Association
1110	DTD	Digital Terrain Data
1111	DTG	Date-Time Group
1112	DTH	Direct To Home (television)
1113	DTI	UK Department of Trade and Industry
1114	DTIC	(U.S.) Defense Technical Information Center
1115	DTL	Diode-Transistor Logic (electronics)
1116	DTMF	Dual-tone multi-frequency signaling
1117	DTO	Disruptive Technology Office (was ARDA)
1118	DTR	Determine The Relationship
1119	DTSA	(U.S.) Defense Technology Security Administration
1120	DUMBO	Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
1121	DUSD	(U.S.) Deputy Under-Secretary of Defense
1122	DVLC	UK Driver and Vehicle Licencing Centre
1123	DVM	Doctor of Veterinary Medicine
1124	DVO	Direct View Optics
1125	DVOM	Digital Volt-Ohm Meter
1126	DVP	various meanings (disambiguation page)
1127	DW	Drum Workshop
1128	DWIM	Do What I Mean
1129	DWM	Doctor Who Magazine
1130	DWTS	Dancing with the Stars
1131	DWW	Down with Webster
1132	DXA	Dual-energy X-ray Absorptiometry
1133	DXM	DeXtroMethorphan
1134	DY	Dahomey (ISO 3166 digram; obsolete since 1977)
1135	Dy	Dysprosium
1136	DZA	Algeria (ISO 3166 trigram)
1137	E	East
1138	EABU	Explain Acronyms Before Use
1139	EAC	Echelons Above Corps
1140	EAPC	Euro-Atlantic Partnership Council
1141	EAST	Experimental Advanced Superconducting Tokamak
1142	EBD	Electronic Brake Distribution
1143	EBE	Extraterrestrial Biological Entity
1144	EBSA	Employee Benefits Security Administration
1145	EBW	Electron Beam Welding
1146	EBW	Exploding BridgeWire
1147	ECASS	European Centre for Analysis in the Social Sciences [1]
1148	ECBR	European Coalition for Biomedical Research
1149	ECCM	Electronic Counter-Counter-Measures
1150	ECFS	Electronic Case Filing System
1151	ECG	Electrocardiogram
1152	ECHR	European Convention on Human Rights
1153	ECJ	European Court of Justice
1154	ECL	Emitter Coupled Logic (electronics)
1155	ECommHR	European Commission on Human Rights
1156	ECSC	European Coal and Steel Community (distant ancestor of the EU)
1157	ECT	ElectroConvulsive Therapy
1158	ECtHR	European Court of Human Rights
1159	EDA	European Defence Agency
1160	EDAC	Error Detection And Correction
1161	EDCS	Environmental Data Coding Specification
1162	EDH	Eastman Dental Hospital
1163	EDSA	Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history)
1164	EDT	Eastern Daylight Saving Time (UTC−4 hours)
1165	EEC	European Economic Community (predecessor of the EU)
1166	EEG	ElectroEncephaloGram
1167	EENT	End Evening Nautical Twilight
1168	EEO	Equal Employment Opportunity
1169	EEOC	(U.S.) Equal Employment Opportunity Commission
1170	EEZ	Economic Exclusion Zone or Exclusive Economic Zone
1171	EFF	Electronic Frontier Foundation
1172	EFL	English as a Foreign Language
1173	EFM	Enterprise Feedback Management
1174	EFOA	European Fuel Oxygenates Association
1175	EFSA	European Food Safety Authority
1176	EFT	Electronic Fund Transfer
1177	EFV	Expeditionary Fighting Vehicle
1178	EG	Egypt (ISO 3166 digram; FIPS 10-4 country code)
1179	EGCG	EpiGalloCatechin-3-Gallate
1180	EGIS	Erieye Ground Interface Segment
1181	EGRET	Energetic Gamma-Ray Experiment Telescope
1182	EGY	Egypt (ISO 3166 trigram)
1183	EHF	Extremely High Frequency
1184	EHR	Equipment History Record
1185	Ei	Exbi
1186	EI	Ireland (FIPS 10-4 country code; from Éire)
1187	EIA	Environmental Impact Assessment
1188	EIAH	Encyclopedia of Iranian Architectural History
1189	EIAH	Environnements Informatiques pour l'Apprentissage Humain
1190	EIC	East India Company
1191	EICS	East India Company's Service
1192	eID	electronic ID
1193	EIRP	Effective Isotropic Radiated Power
1194	EIS	Environmental Impact Statement
1195	EJ	Exajoule
1196	EKG	Electrocardiogram (from German Elektrokardiogramm)
1197	EKMS	Electronic Key Management System
1198	EL	Exalitre
1199	ELINT	Electronic Intelligence
1200	ELL	English Language Learner
1201	ELM	Edge-Localised Mode (plasma physics)
1202	ELO	Electric Light Orchestra
1203	ELSS	Emergency Life Support Stores
1204	EM	ElectroMagnetism/ElectroMagnetic
1205	Em	Exametre
1206	EMA	European Medicines Agency
1207	EMCON	(Electromagnetic) Emissions Control
1208	EMDG	Euro-Missile Dynamics Group
1209	EMDR	Eye Movement Desensitisation and Reprocessing
1210	EMEA	Europe,Middle East and Africa
1211	EMG	ElectroMyoGraph
1212	EMP	ElectroMagnetic Pulse
1213	EMS	Emergency Medical Services
1214	EMT	Emergency Medical Technician
1215	ENCODE	Encyclopedia of DNA Elements (human genome data project)
1216	ENE	East North-East
1217	ENG	England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
1218	ENTEC	Euro NATO Training Engineer Centre
1219	ENVL	Envelope
1220	ENY	Enemy
1221	EOD	Explosive Ordnance Disposal
1222	EOG	ElectroOculoGraphy
1223	EOM	End of Message
1224	EOSAT	Earth Observation Satellite
1225	EOSDIS	Earth Observation Satellite Data and Information System
1226	EP	European Parliament
1227	EP	Extended play
1228	EPCOT	Experimental Prototype Community Of Tomorrow
1229	EPGS	EOS Polar Ground Sites
1230	EPIRB	Emergency Position Indicating Radio Beacon
1231	EPL	English Premier League
1232	EPOS	Electronic Point Of Sale
1233	EPPA	Employee Polygraph Protection Act
1234	EPR	European Pressurised [Nuclear] Reactor
1235	EQ	Emotional Quotient
1236	Er	Erbium
1237	ERCIM	European Research Consortium for Informatics and Mathematics
1238	ERI	Eritrea (ISO 3166 trigram)
1239	ERLAWS	Eastern Ruapehu Lahar Alarm and Warning System
1240	EROS	Earth Resources Observation System
1241	ERP	Engineer Regulating Point
1242	ERR	Eesti Rahvusringhääling
1243	ERS	Earth Resources Survey
1244	ERTS	Earth Resources Technology Satellite (became Landsat)
1245	ERV	Endogenous RetroVirus
1246	ESD	ElectroStatic Discharge
1247	ESDP	European Security and Defence Policy
1248	ESE	East South-East
1249	ESH	Western Sahara (ISO 3166 trigram)
1250	ESL	English as a Second Language
1251	ESM	Electronic warfare Support Measures
1252	ESO	European Southern Observatory
1253	ESOL	English for Speakers of Other Languages
1254	ESPN	Entertainment and Sports Programming Network
1255	ESU	Emergency Services Unit
1256	ESV	Engineer Support Vehicle
1257	ET	Ethiopia (ISO 3166 digram; FIPS 10-4 country code)
1258	ETH	Ethiopia (ISO 3166 trigram)
1259	ETI	Extra-Terrestrial Intelligence
1260	ETLA	Extended TLA
1261	ETT	Embedded Training Team
1262	Eu	Europium
1263	EUCOM	(U.S.) European Command
1264	EUUSA	European Union and United States of America
1265	EV	Exavolt
1266	EVIL	Electronic viewfinder (with) interchangeable lens (a type of digital camera)
1267	EWTN	Eternal Word Television Network
1268	Exatesla	Extra Terrestrial
1269	EXREP	Expeditious Repair (SM&R code)
1270	f	Femto
1271	fA	Femtoampere
1272	FA	Food Addicts in Recovery Anonymous
1273	FAA	Financial Aid Administrator,Fleet Air Arm,Functional Area Analysis
1274	FAAD	Forward Area Air Defence
1275	FAADEZ	Forward Area Air Defence Engagement Zone
1276	FAAFP	Fellow of the American Academy of Family Physicians
1277	FAAN	Fellow of the American Academy of Neurology
1278	FAAN	Fellow of the American Academy of Nursing
1279	FAAQ	Frequently Asked and Anticipated Questions
1280	FAASV	Field Artillery Ammunition Supply Vehicle
1281	FAB	Feline Advisory Bureau (UK feline charity)
1282	FACA	(US) Federal Advisory Committee Act
1283	FACH	Fuerza Aérea de Chile
1284	FACN	Fellow of the American College of Nutrition
1285	FACP	Fellow of the American College of Physicians
1286	FACTS	Flexible Alternating Current Transmission System
1287	FAM	Foreign Affairs Manual
1288	FAO	Food and Agriculture Organization
1289	FAPA	Fellow of the American Psychological Association
1290	FAPHA	Fellow of the American Public Health Association
1291	FARP	Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
1292	FASCAM	Family of Scatterable Mines[1]
1293	FASD	Fetal Alcohol Spectrum Disorder
1294	FASEB	Federation of American Societies for Experimental Biology
1295	FAT	Field Artillery Tractor
1296	FAVS	Future Armoured Vehicle System
1297	FAW	Football Association of Wales
1298	FBCS	Fellow of the British Computer Society
1299	FBIDST	Fellow of the British Institute of Dental and Surgical Technologists
1300	FBIS	Foreign Broadcast Information Service
1301	FBM	Board foot
1302	fC	Femtocoulomb
1303	FCC	U.S. Federal Communications Commission
1304	FCE	First Certificate in English
1305	FCF	Financial Free Cash Flow
1306	FCLA	Fraud Claims Law Associate
1307	FCO	UK Foreign and Commonwealth Office
1308	FCW	Florida Championship Wrestling
1309	FD	Falun Dafa
1310	FDA	Food and Drug Administration (U.S.)
1311	FDBK	(I) Feedback
1312	Fe	Iron (Latin Ferrum)
1313	FEAST	Forum for European-Australian Science and Technology Cooperation
1314	FEATS	Festival of European Anglophone Theatrical Societies link title
1315	FEBA	Forward Edge of the Battle Area
1316	FED	Field Emission Display
1317	FEDEP	Federation Development Process (Simulation)
1318	FEF	Frontal Eye Field (neurophysiology)
1319	FEMA	Farm Equipment Manufacturers Association, U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association
1320	FENS	Federation of European Neuroscience Societies
1321	FES	Flywheel Energy Storage
1322	FEST	Frankfurt English Speaking Theatre link title
1323	FET	Field-effect transistor
1324	FEZ	Fighter Engagement Zone
1325	fF	Femtofarad
1326	FF	Final Fantasy
1327	FFB	Frum From Birth (referring to an observant Jew born into a religiously observant family)
1328	FFC	Free For Chat
1329	FFE	Fukuoka Futures Exchange
1330	FFF	Fédération française de football (French for: French Football Federation)
1331	FFG	Guided Missile Frigate (hull classification symbol)
1332	FFOV	Forward Field Of View
1333	FFR	Fédération française de rugby (French for: French Rugby (Union) Federation)
1334	FFS	For Fuck's Sake
1335	FFT	Final Fantasy Tactics
1336	FG	Falun Gong
1337	fg	Femtogram
1338	FG	Fog (METAR Code), French Guiana (FIPS 10-4 territory code)
1339	FGOTUS	First Gentleman of the United States
1340	FGR	Flickr Group Roulette
1341	fH	Femtohenry
1342	FHFIF	Foster's Home for Imaginary Friends
1343	FHI	Family Health International, Fuji Heavy Industries,Ltd.
1344	FI	Finland (ISO 3166 digram; FIPS 10-4 country code)
1345	FIAT	Fabbrica Italiana Automobili Torino (Italian for: Italian Car Factory of Turin)
1346	FIB	Fucking Illinois Bastard (Wisconsin slang, variants exist)
1347	FIBUA	Fighting In Built-Up Areas
1348	FIC	Fellowship for Intentional Community
1349	FID	Foreign Internal Defence
1350	FIE	Fly-In Echelon
1351	FIFA	Fédération internationale de football association (French for: International Association Football Federation)
1352	FIFe	Fédération internationale féline (French for: International Feline Federation)
1353	FIFO	First In, First Out
1354	FIFRA	Federal Insecticide, Fungicide, and Rodenticide Act
1355	FIGJAM	Fuck I'm Good, Just Ask Me
1356	FIMPT	Fellow of the Institute of Maxillofacial Prosthetists and Technologists
1357	FIN	Finland (ISO 3166 trigram)
1358	FINA	Fédération internationale de natation (French for: International Swimming Federation)
1359	FIRES	Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
1360	FIS	Fédération internationale de ski (French for: International Ski Federation)
1361	FISA	Fédération Internationale des Sociétés d'Aviron (French for: International Federation of Rowing Associations)
1362	FISH	Fluorescence In-Situ Hybridisation
1363	FiST	Fire Support Team
1364	FITS	Flexible Image Transport System
1365	FIU	Florida International University
1366	fJ	Femtojoule
1367	FJ	Fiji (ISO 3166 digram; FIPS 10-4 country code)
1368	FJI	Fiji (ISO 3166 trigram)
1369	FJN	Financial Job Network
1370	FK	Falkland Islands (ISO 3166 digram; FIPS 10-4 territory code)
1371	fK	Femtokelvin
1372	FKSM	Fort Knox Supplemental Manual
1373	FKT	Fastest Known Time
1374	fL	Femtolitre
1375	FL	Florida (postal symbol)
1376	fl	floruit (Latin for: living) (genealogy)
1377	FLA	Florida,Front Line Assembly,Future Large Aircraft
1378	FLAB	Four-letter abbreviation
1379	FLAC	Free Legal Advice Centres
1380	FLAC	Free Lossless Audio Codec
1381	FLAK	Flug-Abwehr-Kanone (German for: Anti-Aircraft Guns)
1382	FLB	Forward Logistics Base
1383	FLET	Forward Line of Enemy Troops
1384	FLG	Falun Gong
1385	FLIP	Flight Information Publication
1386	FLIR	Forward Looking InfraRed (sensor)
1387	FLK	Falkland Islands (ISO 3166 trigram)
1388	FLOT	Forward Line of Own Troops
1389	FLOTUS	First Lady of the United States (the wife of the President of the United States)
1390	FLQ	Free Legal Questions
1391	FLQ	Front de libération du Québec (French for: Québec Liberation Front)
1392	FLSA	Fair Labor Standards Act
1393	FLTSAT	Fleet Satellite
1394	FLTSATCOM	Fleet Satellite Communication System
1395	FLUBOS	Fat, Lazy, Useless, Bag Of Shit
1396	FM	Factory Mutual
1397	FM	Federal Magistrate (Australian post-nominal),Federated States of Micronesia (postal symbol; ISO 3166 digram; FIPS 10-4 territory code),Field Manual,Flight Manager,Frequency Modulation (electronics)
1398	fm	Femtometre
1399	Fm	Fermium
1400	FMC	Federal Magistrates' Court (an Australian federal court,formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation)
1401	FMCA	Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions)
1402	FMCAfam	Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC)
1403	FMCG	Fast Moving Consumer Goods
1404	FME	Formal Methods Europe
1405	FMECA	Failure Modes and Effect Criticality Analysis
1406	FMJD	Fédération Mondiale du Jeu de Dames
1407	FMLA	Family Medical Leave Act
1408	FoE	Friends of the Earth
1409	FOGC	Federal Oil and Gas Council
1410	FOH	Front Of House
1411	FOIA	Freedom of Information Act
1412	FOM	Federation Object Model
1413	FONSI	Finding of No Significant Impact
1414	FOO	Forward Observation Officer
1415	FOOP	Friends Of Organ Pipes (Volunteer group)
1416	FoS	Family of Systems
1417	FOSE	Fallout 3 Script Extender
1418	FOSE	Federal Office Systems Expo
1419	FOT	Free on truck
1420	FOTA	Fellow of the Orthodontic Technicians Association
1421	FOTC	Flight of the Conchords
1422	FOUO	For Official Use Only
1423	FP	French Polynesia (FIPS 10-4 territory code)
1424	FPF	Federação Portuguesa de Futebol (Portuguese for: Portuguese Football Federation), Final Protective Fire
1425	FPS	Fire Prevention System
1426	FQ	Baker Island (FIPS 10-4 territory code),French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979)
1427	FR	France (FIPS 10-4 country code; ISO 3166 digram)
1428	Fr	Francium
1429	FRA	Federal Railroad Administration, France (ISO 3166 trigram)
1430	FRAND	Fair,reasonable,and non-discriminatory (concept in standards-setting and intellectual property law)
1431	FRCP	Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians
1432	FRICBM	Full Range ICBM
1433	FRO	Faroe Islands (ISO 3166 trigram)
1434	FRS	Fellow of the Royal Society, U.S. Federal Reserve System
1435	FRSA	Fellow of the Royal Society of Art
1436	FRY	Federal Republic of Yugoslavia
1437	fs	Femtosecond
1438	fS	Femtosiemens
1439	FSA	Fire Support Area, UK Food Standards Agency, Functional Solution Analysis
1440	FSC	Federal Supply Classification, Forest Stewardship Council (ecological pressure group)
1441	FSCL	Fire Support Co-ordination Line
1442	FSE	Fire Support Element
1443	FSF	Free Software Foundation
1444	FSH	Follicle Stimulating Hormone
1445	FSI	Fuel Stratified Injection
1446	FSS	Fire Support Station
1447	FSSP	Families of Structurally Similar Proteins
1448	FSTC	Foreign Science Technology Center (now NGIC)
1449	fT	Femtotesla
1450	FTC	Federal Trade Commission
1451	FTE	Full Time Equivalent
1452	FTL	Faster Than Light
1453	FTS	Flight Termination System used during some rocket launches
1454	FTS	Fuck That Shit
1455	FU	Smoke (METAR Code)
1456	FUBAR	Fucked/Fouled Up Beyond All Recognition/Repair
1457	fV	Femtovolt
1458	fW	Femtowatt
1459	FW	Forward
1460	FWC	Football World Cup
1461	FWF	Fixed Word Format
1462	FWI	French West Indies
1463	FWIW	For What It's Worth
1464	FWS	U.S. Fish and Wildlife Service
1465	FWT	Fresh Water Tank
1466	FXX	Metropolitan France (ISO 3166 trigram; obsolete 1997)
1467	FYA	For Your Agenda
1468	FYDP	Five-Year Defense Plan (U.S.)
1469	FYI	For Your Information
1470	FYROM	Former Yugoslav Republic of Macedonia
1471	FZDZ	Freezing Drizzle (METAR Code)
1472	FZFG	Freezing Fog (METAR Code)
1473	FZRA	Freezing Rain (METAR Code)
1474	g	Gram
1475	G3	Heckler & Koch G3
1476	GAAR	General Anti-Avoidance Rule (tax evasion)
1477	GAB	Gabon (ISO 3166 trigram)
1478	GABA	Gamma-AminoButyric Acid
1479	GAD	Generalized Anxiety Disorder
1480	GAF	Garfield and Friends
1481	GAO	U.S. Government Accountability Office
1482	GAW	Global Atmospheric Watch
1483	GBBC	Great (Global) Backyard Bird Count
1484	GBE	Knight/Dame Grand Cross of the Order of the British Empire
1485	GBR	United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram)
1486	GCA	Graduate in Claims Administration
1487	GCD	see entry
1488	GCF	Greatest Common Factor
1489	GCI	Ground-controlled interception
1490	GCN	Gamma-ray burst Coordination Network
1491	GCS	Global Coordinate System
1492	GCSE	General Certificate of Secondary Education (UK)
1493	Gd	Gadolinium
1494	GD	Grenada (ISO 3166 digram)
1495	GDL	Game Definition Language
1496	GDR	General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack)
1497	GDR	German Democratic Republic (cf. DDR)
1498	GDW	Game Designers Workshop
1499	Ge	Germanium
1500	GEBCO	General Bathymetric Chart of the Oceans
1501	GEC	Great Engineering Challenge
1502	GED	General Educational Development (high school equivalency credential in the U.S. and Canada)
1503	GEEP	Geophysical Equipment Exploration Platform
1504	GEN	Full General (four stars) in the U.S. Army
1505	GeV	Gigaelectron-volt
1506	GEV	Ground Effect Vehicle
1507	GFCI	Ground Fault Circuit Interruptor (aka GFI)
1508	GFI	Ground Fault Interruptor (aka GFCI)
1509	GFL	German Football League (Germany's Bundesliga for American football; the English-language name is used in German without translation)
1510	GFN	Global Footprint Network
1511	GG	Georgia (FIPS 10-4 country code)
1512	GGK	Good God Karma
1513	GHA	Ghana (ISO 3166 trigram)
1514	GHB	gamma-Hydroxybutyric acid
1515	Gi	Gibi
1516	GIB	Gibraltar (ISO 3166 trigram)
1517	GIG	Global Information Grid
1518	GINO	Godzilla In Name Only
1519	GISS	General Impression of Size and Shape,Goddard Institute for Space Studies
1520	GJD	Geocentric Julian Day
1521	GLAAD	Gay and Lesbian Alliance Against Defamation
1522	GLAC	General Ledger Accounting Code
1523	GLAST	Gamma-ray Large Area Space Telescope
1524	GLBA	Gramm-Leach-Bliley Act
1525	GLC	Gas-liquid chromatography
1526	GLP	Guadeloupe (ISO 3166 trigram)
1527	GLV	Gained Life Value
1528	Gm	Gigametre
1529	GM	The Gambia (ISO 3166 digram),GameMaster (role-playing),General Motors,Genetically Modified,Germany (FIPS 10-4 country code),Guru Meditation (computing)
1530	GMAC	General Motors Acceptance Corporation,the original name of the company now known as Ally Financial,Graduate Management Admission Council,G-MAC,Great Midwest Athletic Conference
1531	GMB	The Gambia (ISO 3166 trigram),General,Municipal,Boilermakers (and Allied Trade Union)
1532	GMFSC	Ground Mobile Forces Satellite Communications
1533	GMO	Genetically Modified Organism
1534	GMPCS	Global Mobile Personal Communications by Satellite
1535	GNAS	Grand National Archery Society
1536	GNB	Guinea-Bissau (ISO 3166 trigram)
1537	GNP	Gross National Product
1538	GNQ	Equatorial Guinea (ISO 3166 trigram)
1539	GnRH	Gonadotropin-Releasing Hormone
1540	GO	Glorioso Islands (FIPS 10-4 territory code)
1541	GOA	General of the Army (United States only)
1542	GOAT	Greatest Of All Time
1543	GOC	General Officer Commanding
1544	GOES	Geostationary Operational Environmental Satellite
1545	GOP	Grand Old Party
1546	gorp	granola,oats,raisins,peanuts (another name for trail mix),probably a backronym
1547	GOSC	General Officer Steering Committee
1548	GOSH	Great Ormond Street Hospital
1549	GOSP	Gas/Oil Separation Plant
1550	GOTS	Government off-the-shelf
1551	GOYADIN	Get Off Your Arse,Do It Now (anti-procrastination mantra)
1552	GP	General Practitioner,General Purpose,Grand Prix,Guadeloupe (ISO 3166 digram; FIPS 10-4 territory code)
1553	GPA	Grade Point Average
1554	GPC	Global Path Cache
1555	GPIB	General-Purpose Instrumentation/Interface Bus
1556	GPO	General Post Office
1557	GPPC	Genetics and Public Policy Center
1558	GPR	Ground-Penetrating Radar
1559	GPS	General Problem Solver,Global Positioning System
1560	GPT	General Purpose Technology, Get paid to surf (an online business model)
1561	GQ	Equatorial Guinea (ISO 3166 digram),Gentlemen's Quarterly (the original name of the magazine now known simply as GQ),Guam (FIPS 10-4 territory code),GR[edit]
1562	GR	Greece (FIPS 10-4 country code; ISO 3166 digram),Hail (METAR Code)
1563	GRAIL	Gravity Recovery and Interior Laboratory
1564	GRAS	Generally recognized as safe (FDA list)
1565	GRB	Gamma-Ray Burst
1566	GRC	Greece (ISO 3166 trigram)
1567	GRD	Grenada (ISO 3166 trigram)
1568	GRE	Graduate Record Examination,Greece (IOC and FIFA trigram,but not ISO 3166)
1569	grep	[search] Globally for Regular Expression,Print [lines]
1570	GRID	Gay-Related Immune Deficiency (original name of AIDS)
1571	GRid	Global Release Identifier,a music industry identifier from the RIAA and IFPI
1572	GriT	Girl raised in Texas (Woman presenting firm southern traits/beliefs)
1573	GRL	Greenland (ISO 3166 trigram)
1574	GRN	Grenada (IOC and FIFA trigram,but not ISO 3166),Goods Received Note
1575	Gs	Gigasecond
1576	GSA	U.S. General Services Administration
1577	GSD	Graphical Situation Display
1578	GSGB	(God send glamour boy 9-10/10)
1579	GSK	GlaxoSmithKline [good sexual karma]
1580	GSN	Game Show Network
1581	GSO	General Services Officer (U.S. Department of State)
1582	GSOH	Good Sense Of Humour
1583	GSP	Georges St-Pierre (Canadian MMA fighter)
1584	GSR	Gun Shot Residue
1585	GSS	Generic Security Services
1586	GSW	Gunshot wound
1587	GTD	Getting Things Done
1588	GTG	Got To Go (Internet chat)
1589	GTGN	Getty Thesaurus of Geographic Names
1590	GTK	Good To Know (Internet chat)
1591	GTM	Guatemala (ISO 3166 trigram)
1592	GU	Guam (postal symbol; ISO 3166 digram)
1593	GUF	French Guiana (ISO 3166 trigram)
1594	GUILT	Gangliated Utrophin Immuno Latency Toxin
1595	GULCR	Grupo de Usuarios de Linux de Costa Rica
1596	GUT	Grand Unification Theory
1597	GWARS	Ground Warfare System (simulation)
1598	GWAS	Grand Western Archery Society
1599	GWOT	Global War on Terrorism
1600	GXE	Gene-enivronment interaction
1601	GXM	Matrox Graphics eXpansion Module
1602	GY	Guyana (FIPS 10-4 country code; ISO 3166 digram)
1603	GZK	Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies)
1604	h	Hecto
1605	H	Henry
1606	H1	First half of the year
1607	H2	Second half of the year
1608	HAARP	High Frequency Active Auroral Research Program
1609	HAART	Highly Active Anti-Retroviral Therapy
1610	HAI	Human Awareness Institute
1611	HAL	Hardware Abstraction Layer
1612	HALO	High Altitude Low Opening (parachute jump)
1613	HAM	Amateur radio operator
1614	HANS	Head And Neck Support (device used in many race cars)
1615	HARM	High-speed Anti-Radiation Missile
1616	HAW	Heavy Antitank Weapon
1617	HAWK	Homing All the Way Killer (air defence system)
1618	HAZ	Heat-Affected Zone
1619	HAZMAT	Hazardous Materials
1620	HBCD	HexaBromoCycloDodecane
1621	HBO	Home Box Office
1622	HBR	Harvard Business Review
1623	HBT	Heterojunction Bipolar Transistor
1624	HBV	Hepatitis B Virus
1625	HCCI	Homogeneous Charge Compression Ignition
1626	HCF	Highest Common Factor
1627	HCSC	Higher Command and Staff Course
1628	HDL	High-Density Lipoprotein
1629	HDM	Human Decision-Making
1630	HDRA	Henry Doubleday Research Association
1631	He	Helium
1632	HE	High Explosive
1633	HEAT	High Explosive Anti-Tank (ammunition)
1634	HEBA	Hellenic Basketball Clubs Association
1635	HEER	High-Explosive Extended Range (ammunition)
1636	HEIC	Honourable East India Company
1637	HEMP	High-Altitude Electromagnetic Pulse
1638	HEOSS	High Earth Orbit Space Surveillance
1639	HEP	High-Explosive Plastic (ammunition)
1640	HEPA	High-Efficiency Particulate Air (filter)
1641	HESV	Heavy Engineering Support Vehicle
1642	HETT	Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor
1643	HEU	Highly Enriched Uranium
1644	Hf	Hafnium
1645	HF	High Frequency
1646	HFE	Human Fertilisation and Embryology (UK Act)
1647	HFE	The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT
1648	HFEA	Human Fertilisation and Embryology Authority (UK)
1649	Hg	Mercury (Latin Hydrargyrum)
1650	HGC	UK Human Genetics Commission
1651	HGF	Human Growth Factor
1652	HGTV	Home & Garden Television
1653	HI	Hawaii (postal symbol)
1654	HIH	His (or Her) Imperial Highness
1655	HIM	His (or Her) Imperial Majesty
1656	HIMAD	High to Medium Altitude Air Defence (see also H/MAD)
1657	HIMEZ	High Altitude Missile Engagement Zone
1658	HIMYM	How I Met Your Mother
1659	HIPAA	U.S. Health Insurance Portability and Accountability Act
1660	Hipparcos	HIgh Precision Parallax COllecting Satellite
1661	Hird	Hurd of interfaces representing depth (cf. HURD)
1662	HiRISE	High Resolution Imaging Science Experiment
1663	HIT	Health Information Technology
1664	HIV	Human Immunodeficiency Virus
1665	HIWT	Hobart Institute of Welding Technology
1666	HJD	Heliocentric Julian Day
1667	HK	Hong Kong (ISO 3166 digram; FIPS 10-4 territory code)
1668	HKG	Hong Kong (ISO 3166 trigram)
1669	HKS	HyperKinetic Syndrome
1670	hL	Hectolitre
1671	HL	Holding Line
1672	HLL	High-Level Language
1673	HLN	Headline News
1674	HLOS	High Level Output Specification
1675	HM	Heard Island and McDonald Islands (ISO 3166 digram; FIPS 10-4 territory code)
1676	HMCE	Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs)
1677	HMD	Heard and McDonald Islands (ISO 3166 trigram)
1678	HMF	HydroxyMethyl Furfural
1679	HMO	Health maintenance organization
1680	HMP	Her Majesty's Prison
1681	HMRC	Her/His Majesty's Revenue and Customs
1682	HMSO	Her Majesty's Stationery Office
1683	HMV	His Master's Voice
1684	HN	Honduras (ISO 3166 digram)
1685	HND	Honduras (ISO 3166 trigram)
1686	Ho	Holmium
1687	HO	Honduras (FIPS 10-4 country code)
1688	HOLLAND	Hope Our Love Lasts And Never Dies
1689	HOSTAC	Helicopter Operations from Ships Other Than Aircraft Carriers
1690	HOT	Highly Optimised Tolerance
1691	HOTAS	Hands on throttle-and-stick
1692	HOV	High Occupancy Vehicle
1693	hp	horse power
1694	HPA	UK Health Protection Agency
1695	HPCL	Hindustan Petroleum Corporation Limited
1696	HPLC	High Performance Liquid Chromatography
1697	HPT	High[er] Payoff Target
1698	HPV	Human Papilloma Virus
1699	HRBL	High-level Representation of Behavior Language (original name of the Herbal language)
1700	HRD	Human Resource Development
1701	HRF	High iness Forces
1702	HRH	His (or Her) Royal Highness
1703	HRM	His (or Her) Royal Majesty
1704	HRM	Human Resource Management
1705	HRT	Hormone Replacement Therapy
1706	Hs	Hassium
1707	HSBC	The Hong Kong and Shanghai Banking Corporation
1708	HSC	Higher School Certificate
1709	HSM	High School Musical
1710	HSMAD	Human Science/Modeling and Analysis Data
1711	HSN	Home Shopping Network
1712	HSPH	Harvard School of Public Health
1713	HSSI	High-Speed Serial Interface
1714	HST	see entry
1715	HTA	HyperText Application
1716	HTFU	Harden The Fuck Up
1717	HTH	Hope That Helps
1718	HTI	Haiti (ISO 3166 trigram)
1719	HTML	HyperText Markup Language
1720	HTR	Heated Towel Rail
1721	HTS	High-Temperature Superconducting wire
1722	HTTP	HyperText Transfer Protocol
1723	HU	Hungary (ISO 3166 digram; FIPS 10-4 country code)
1724	HUHA	Head up his/her ass (Marine salute; probably a backcronym)
1725	HUN	Hungary (ISO 3166 trigram)
1726	HURD	Hird of Unix-Replacing Daemons (cf. Hird)
1727	HV	Upper Volta (ISO 3166 digram; obsolete 1984)
1728	HVAP	High Velocity Armour Piercing (ammunition)
1729	HVHF	High velocity human factors
1730	HVM	High Velocity Missile
1731	HVO	Upper Volta (ISO 3166 trigram; obsolete 1984)
1732	HWM	Hardware morphing (computer graphics rendering)
1733	HXB	The glycoprotein Tenascian C
1734	HZ	Haze (METAR Code)
1735	Hz	Hertz
1736	IA	Iowa (postal symbol)
1737	IAAL	I Am A Lawyer
1738	IAB	International Association for Biologicals
1739	IAD	Ion Assisted Deposition
1740	IADS	Integrated Air Defence System
1741	IAEA	International Atomic Energy Agency
1742	IAF	{i} Industrial Areas Foundation
1743	IAFG	Information Assurance Focus Group
1744	IANA	Internet Assigned Numbers Authority
1745	IANAL	I Am Not A Lawyer
1746	IAS	Image Assessment System
1747	IASIP	It's Always Sunny in Philadelphia
1748	IATA	International Air Transport Association
1749	IATF	International Automotive Task Force
1750	IATSE	International Alliance of Theatrical Stage Employees
1751	IAUC	International Astronomical Union Circular
1752	IAW	In Accordance With
1753	IB	International Baccalaureate
1754	IBA	Important Bird Area
1755	IBD	Inflammatory Bowel Disease
1756	IBDM	Information Based Decision Making
1757	IBM	International Business Machines
1758	IBRD	International Bank for Reconstruction and Development (part of the World Bank)
1759	IBS	Irritable Bowel Syndrome
1760	ICANN	Internet Corporation for Assigned Names and Numbers
1761	ICAO	International Civil Aviation Organization
1762	ICBM	Intercontinental Ballistic Missile
1763	ICBN	International Code of Botanical Nomenclature
1764	ICE	In case of emergency
1765	ICES	International Council for the Exploration of the Sea
1766	ICF	Intelligent Community Forum
1767	ICMP	Internet Control Message Protocol
1768	ICNAF	International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978)
1769	ICO	Intermediate Circular Orbit
1770	ICPE	International Conference on Pharmacoepidemiology,the annual conference of the International Society for Pharmacoepidemiology
1771	ICRAF	International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002)
1772	ICRISAT	International Crops Research Institute for the Semi-Arid Tropics
1773	ICRL	Individual Component Repair List
1774	ICRS	International Celestial Reference System
1775	ICSI	Intracytoplasmic Sperm Injection
1776	ICT	Information and communication technologies
1777	ICTH	Island Closest to Heaven/Hell Final Fantasy VIII
1778	ICV	Infantry Carrier Vehicle
1779	ICYMI	In Case You Missed It
1780	IDC	International Data Corporation
1781	IDDI	I don't do initialisms (see irony)
1782	IDGAF	I don't give a fuck
1783	IDK	I don't know
1784	IDL	Interface Definition Language
1785	IDN	Indonesia (ISO 3166 trigram)
1786	IEA	International Energy Agency
1787	IEC	International Electrotechnical Commission
1788	IED	Improvised Explosive Device
1789	IELTS	International English Language Testing System
1790	IER	Information Exchange Requirement
1791	IET	Initial Entry Training
1792	IET	Institution of Engineering and Technology
1793	IETF	Internet Engineering Task Force
1794	IEW	Intelligence and Electronic Warfare
1795	IFAB	International Football Association Board
1796	IFAH	International Federation for Animal Health
1797	IFAP	International Federation of Agricultural Producers
1798	IFO	Identified Flying Object (see also UFO)
1799	IFOV	Instantaneous Field of View
1800	IFPI	International Federation of Phonographic Industries
1801	IFRB	International Frequency Registration Board
1802	IFV	Infantry Fighting Vehicle
1803	IG	Inspector General
1804	IGNOU	Indira Gandhi National Open University
1805	IGS	International Ground Station
1806	IHH	Idiopathic Hypogonadotropic Hypogonadism
1807	IHO	International Hydrographic Organization
1808	IHR	Institute for Historical Review
1809	IHSI	Institutum Historicum Societatis Iesu (Jesuit Historical Institute)
1810	II	Two (in Roman numerals)
1811	IICA	Inter-American Institute for Cooperation on Agriculture
1812	IIE	Innovative Interstellar Explorer
1813	III	Three (in Roman numerals)
1814	IIRC	If I Recall/Remember Correctly
1815	IISS	International Institute for Strategic Studies
1816	IJN	Imperial Japanese Navy (World War II)
1817	IJWP	Interim Joint Warfare Publication
1818	ILDS	Improved Landmine Detection System
1819	ILO	International Labour Organization
1820	ILRI	International Livestock Research Institute
1821	ILY	I Love You [pronounced ILL-LEE]
1822	IMBD	International Migratory Bird Day
1823	IMDb	Internet Movie Database
1824	IME	In My Experience
1825	IMHO	In My Humble/Honest Opinion
1826	IML	International Mister Leather
1827	IMNSHO	In My Not So Humble Opinion
1828	IMPAC	International Merchant Purchase Authorization Card
1829	IMPACT	International Medical Products Anti-Counterfeiting Taskforce
1830	IMPATT	IMPact Avalanche Transit Time diode
1831	IMPT	Institute of Maxillofacial Prosthetists and Technologists
1832	IMRL	Individual Material iness List
1833	IMRO-Internal Macedonian Revolutionary Organization	Irish Music Rights Organisation
1834	IMsL	International Ms. Leather
1835	IMT	Integrated Management Tool
1836	IMU	International Mathematical Union
1837	In	Indium
1838	INA	Immigration and Nationality Act
1839	INAS	International Near-Earth Asteroid Survey
1840	INCITS	InterNational Committee for Information Technology Standards
1841	IND	India (ISO 3166 trigram)
1842	INDIGO	(U.S.) INtelligence DIvision Gaming Operation
1843	inet	the Internet
1844	INFORMS	(U.S.) Institute for Operations Research and the Management Sciences
1845	INFOSEC	Information Security
1846	INLA	Irish National Liberation Army
1847	INMARSAT	International Maritime Satellite organization
1848	INRIA	Institut national de recherche en informatique et en automatique
1849	INS	Immigration and Naturalization Service
1850	InSAR	Interferometric synthetic aperture radar
1851	INST	Information Standards and Technology
1852	INTERFET	International Force for East Timor
1853	INTSUM	Intelligence Summary
1854	IO	British Indian Ocean Territory (ISO 3166 digram; FIPS 10-4 territory code)
1855	IOT	British Indian Ocean Territory (ISO 3166 trigram)
1856	IPB	Intelligence Preparation of the Battlefield
1857	IPL	Inferior Parietal Lobule
1858	IPO	Initial Public Offering
1859	IPT	Integrated Product/Project Team
1860	IPTS	Institute for Prospective Technological Studies
1861	IPTV	Internet Protocol TeleVision
1862	IPW	Interrogation of Prisoners of War
1863	Ir	Iridium
1864	IRAD	Internal Research and Development
1865	IRAN	(I) Inspect and Repair As Necessary
1866	IRAS	Infrared Astronomical Satellite
1867	IRB	International Rugby Board
1868	IRBM	Intermediate Range Ballistic Missile
1869	IREA	Intermountain Rural Electric Association
1870	IRINN	Islamic Republic of Iran News Network
1871	IRL	Ireland (ISO 3166 trigram),Industrial Research Limited,Indy Racing League,In real life
1872	IRN	Iran (ISO 3166 trigram)
1873	IRO	International Refugee Organisation
1874	IRQ	Iraq (ISO 3166 trigram)
1875	IRS	U.S. Internal Revenue Service
1876	IRST	Infra-red Search and Track
1877	ISAAA	International Service for the Acquisition of Agri-biotech Applications
1878	ISAR	Inverse SAR (Synthetic Aperture Radar)
1879	ISB	Intermediate Staging Base
1880	ISBN	International Standard Book Number (ISO 2108)
1881	ISCCP	International Satellite Cloud Climatology Project
1882	ISCII	Indian Standard Code for Information Interchange
1883	ISDN	Integrated Services Digital Network
1884	ISEF	Intel International Science and Engineering Fair
1885	ISEN	Internet Search Environment Number
1886	ISF	Internal Security Force
1887	ISIL	Islamic State of Iraq and the Levant
1888	ISIS	Institute for Science and International Security, or: Islamic State of Iraq and Syria
1889	ISL	Iceland (ISO 3166 trigram)
1890	ISLN	International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell)
1891	ISMB	International Society of Matrix Biologists
1892	ISMC	Intelligent Sounding Meaningless Conversation
1893	ISOGP	Indian Society of Orthodontics for General Practitioners [2]
1894	ISPE	International Society for Pharmacoepidemiology
1895	ISRO	Indian Space Research Organisation
1896	ISSCR	International Society for Stem Cell Research
1897	ISSN	International standard serial number (ISO 3297)
1898	ISTC	Institute of Scientific and Technical Communications (UK)
1899	ISTS	Intel Science Talent Search
1900	ITA	Italy (ISO 3166 trigram)
1901	ITAG	Inertial Terrain-Aided Guidance
1902	ITALY	I'll Truly Always Love You
1903	ITAS	Improved Target Acquisition Sight
1904	ITC	InferoTemporal Cortex (neurophysiology)
1905	ITCZ	Intertropical Convergence Zone
1906	ITEC	Information Technology Exposition & Conference
1907	ITEMS	Interactive Tactical Environment Management System
1908	ITER	International Thermonuclear Experimental Reactor
1909	ITF	International Tennis Federation
1910	ITK	In The Know
1911	ITN	Independent Television News (British)
1912	ITT	International Telephone and Telegraph (U.S.)
1913	ITTO	International Tropical Timber Organization
1914	IUCN	International Union for the Conservation of Nature and Natural Resources (World Conservation Union)
1915	Iveco	Industrial Vehicles Corporation
1916	IVF	In Vitro Fertilisation
1917	IVI	Interchangeable Virtual Instrument
1918	IVIS	Inter-Vehicle Information System
1919	IVL	Inter-Visibility Line
1920	IVM	In Vitro [Oocyte] Maturation
1921	IVO	In Vicinity Of
1922	IW	Information Warfare
1923	IWARS	Infantry Warrior Simulation
1924	IWC	International Whaling Commission
1925	IWW	Industrial Workers of the World
1926	IX	Nine (in Roman numerals)
1927	IXT	IntraText digital library; IntraText lexical hypertext
1928	IY	Saudi-Iraqi neutral zone (FIPS 10-4 territory code; obsolete 1993)
1929	IZ	Iraq (FIPS 10-4 country code)
1930	J	Joule
1931	J1	Joint [Manpower &] Personnel Directorate
1932	J2	Joint Intelligence Directorate
1933	J3	Joint Operations Directorate
1934	J4	Joint Logistics Directorate
1935	J5	Joint Strategic Plans & Policy Directorate
1936	J7	Joint Operational Plans & Interoperability Directorate
1937	JA	Japan (FIPS 10-4 country code)
1938	JAFT	Just A Field Test
1939	JAL	Japan Airlines
1940	JALLC	Joint Analysis and Lessons Learned Centre (NATO)
1941	JAM	Jamaica (ISO 3166 trigram)
1942	JAMA	Journal of the American Medical Association
1943	JANET	Joint Academic Network
1944	JATO	Jet-Assisted Take-Off
1945	JB	Jail Bait
1946	JB	Junior Branch
1947	JBFSA	Joint Blue Force Situational Awareness
1948	JCDB	Joint Common Data Base
1949	JCDS	Joint Chiefs of the Defence Staff
1950	JCIDS	Joint Capabilities Integration and Development System
1951	JCL	Job Control Language
1952	JCP	Java Community Process
1953	JCS	Joint Chiefs of Staff
1954	JCW	Juggalo Championship Wrestling
1955	JDBC	Java Data Base Connectivity
1956	JDEM	Joint Dark Energy Mission
1957	JDL	Jewish Defense League
1958	JE	Jersey (FIPS 10-4 territory code)
1959	JEFX	Joint Expeditionary Force eXperiment
1960	JET	Joint European Torus
1961	JEZ	Joint Engagement Zone
1962	JFACC	Joint Force Air Component Commander
1963	JFACTSU	U.S. Joint Forward Air Control Training and Standards Unit
1964	JFC	Joint Force Commander
1965	JFK	John Fitzgerald Kennedy or the airport named after him.
1966	JFLCC	Joint Force Land Component Commander
1967	JFMCC	Joint Force Maritime Component Commander
1968	JFO	Journal of Field Ornithology
1969	JFSOCC	Joint Force Special Operations Component Commander
1970	JFTX	Joint Field Training Exercise
1971	JH	Japan Highway Public Corporation
1972	JH	Jharkhand (Indian state code)
1973	JI	Joint Implementation
1974	JIB	Joint Information Bureau
1975	JIC	Joint Intelligence Centre
1976	JINI	Java Intelligent Network Infrastructure
1977	JITC	Joint Interoperability Test Command
1978	JIVE	Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe
1979	JJAP	Japanese Journal of Applied Physics
1980	JL	Japan Airlines (IATA airline designator)
1981	JLA	Justice League of America
1982	JM	Jamaica (FIPS 10-4 country code; ISO 3166 digram)
1983	JMS	Java Message Service
1984	JN	Jan Mayen Island (FIPS 10-4 territory code)
1985	JNI	Java Native Interface
1986	JNLP	Java Network Launch Protocol
1987	JO	Jordan (FIPS 10-4 country code; ISO 3166 digram)
1988	JOA	Joint Operations Area
1989	JOPES	Joint Operations Planning and Execution System
1990	JOR	Jordan (ISO 3166 trigram)
1991	JOTS	Joint Operations Tactical System
1992	JPL	Jet Propulsion Laboratory
1993	JPN	Japan (ISO 3166 trigram)
1994	JPOW	Joint Project Optic Windmill
1995	JRDF	Joint Rapid Deployment Forces
1996	JRE	Java Runtime Environment
1997	JREF	James Randi Educational Foundation
1998	JROC	Joint Requirements Oversight Council
1999	JROCM	JROC Memorandum
2000	JRRF	Joint Rapid Reaction Force
2001	JRSAI	Journal of the Royal Society of Antiquaries of Ireland
2002	JSAP	Japan Society of Applied Physics
2003	JSCSC	Joint Services Command and Staff College
2004	JSEAD	Joint Suppression of Enemy Air Defence (see SEAD)
2005	JSF	Joint Strike Fighter
2006	JSIMS	Joint Simulation System
2007	JSOA	Joint Special Operations Area
2008	JSOTF	Joint Special Operations Task Force
2009	JSP	JavaServer Page
2010	JSP	Joint Services Publication
2011	JSR	Java Specification Request
2012	JSS	Joint Support Ship Project
2013	JTC	Joint Training Confederation
2014	JTF	Joint Task Force
2015	JTFEX	Joint Task Force Exercise
2016	JTLS	Joint Theater Level Simulation
2017	JTMD	Joint Theatre Missile Defence
2018	JTN	Johnston Atoll (ISO 3166 trigram; obsolete 1986)
2019	JU	Juan de Nova Island (FIPS 10-4 territory code)
2020	JUGFET	JUnction Gate Field-Effect Transistor
2021	JUICE	JUpiter ICy Moon Explorer
2022	JUO	Joint Urban Operations
2023	JV	Joint Venture,Junior Varsity
2024	JW	Jehovah's Witnesses
2025	JWARS	Joint Warfare System (simulation)
2026	JWP	Joint Warfare Publication
2027	JY	Japanese Yen
2028	JZ	Joint Zone
2029	K	Kelvin,Potassium (Latin Kalium),Tanker (aircraft designation code)
2030	k	Kilo-
2031	K	picokelvin
2032	K9	Canine Police Unit
2033	Ka	Kamov Design Bureau
2034	kA	Kiloampere
2035	KA	Knowledge Acquisition,Karnataka (Indian state code)
2036	KAF	Kandahar Air Field
2037	KANUKOKA	Kalaallit Nunaanni Kommunit Kattuffiannit (Kalaallisut, Greenlandic Communities Association
2038	KARNAC	Knowledge Aided Retrieval in Activity Context
2039	KARR	Knight Automated Roving Robot (Knight Rider character)
2040	KATUSA	Korean Augmentation To United States Army
2041	KAZ	Kazakhstan (ISO 3166 trigram)
2042	KBE	Knight Commander of the Order of the British Empire
2043	KBO	Kuiper Belt Object
2044	KBVB	Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association)
2045	kC	Kilocoulomb
2046	KCK	Kansas City,Kansas,Koma Civakên Kurdistan (Kurdish, Union of Communities in Kurdistan)
2047	KCL	King's College London
2048	KCMO	Kansas City,Missouri (pronounced: K-C-Moe)
2049	KCS	Kansas City Southern Railway (AAR reporting mark)
2050	KD	Kawasaki Disease,Kraft Dinner
2051	KE	Kenya (FIPS 10-4 country code; ISO 3166 digram),Kinetic Energy,Knowledge Engineering
2052	KEDO	Korean Peninsula Energy Development Organization
2053	KEN	Kenya (ISO 3166 trigram)
2054	KERA	Kentucky Education Reform Act (of 1990)
2055	kerma	Kinetic Energy Released in MAterial / in MAtter / per unit MAss
2056	KESR	Kent and East Sussex Railway.
2057	KET	Kentucky Educational Television,Key English Test
2058	kF	Kilofarad
2059	KFC	Kentucky Fried Chicken
2060	KFOR	UN Kosovo Force
2061	KFUPM	King Fahd University of Petroleum & Minerals
2062	KG	Kyrgyzstan (FIPS 10-4 country code; ISO 3166 digram)
2063	KGO	Knight of the Guelphic Order of Hanover
2064	KGZ	Kyrgyzstan (ISO 3166 trigram)
2065	KH	Cambodia (ISO 3166 digram)
2066	kH	Kilohenry
2067	KHL	Kontinental Hockey League
2068	KHM	Cambodia (ISO 3166 trigram)
2069	KHz	Kilohertz
2070	Ki	Kibi
2071	KI	Kiribati (ISO 3166 digram)
2072	KIA	Killed In Action
2073	KIDS	Knowledge-based Integrated Design System
2074	KIR	Kiribati (ISO 3166 trigram)
2075	KISS	Keep It Simple,Stupid / Keep It Short and Simple,Korean Intelligence Support System
2076	KIT	Keep In Touch
2077	KITECH	Korean Institute of Industrial Technology
2078	KITT	Knight Industries Two Thousand, Knight Industries Three Thousand
2079	kJ	Kilojoule
2080	kK	Kilokelvin
2081	KKK	Ku Klux Klan
2082	kL	Kilolitre
2083	KLENOT	KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope
2084	KLOC	Kilo Lines Of Code
2085	KM	Comoros,Knowledge Management
2086	kN	Kilonewton
2087	KNA	Saint Kitts and Nevis (ISO 3166 trigram)
2088	KNVB	Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association)
2089	KO	Knocked Out
2090	KOR	Republic of Korea (ISO 3166 trigram)
2091	KP	Kim Possible
2092	KPMG	Klynveld,Peat,Marwick,Goerdeler
2093	KPNO	Kitt Peak National Observatory
2094	KQ	Kenya Airways (IATA airline designator), Kingman Reef (FIPS 10-4 territory code)
2095	KR	Kiribati (FIPS 10-4 country code), Republic of Korea (ISO 3166 digram)
2096	Kr	Krypton
2097	KS	Kansas (postal symbol), Republic of Korea (FIPS 10-4 country code)
2098	kS	Kilosiemens
2099	KSC	Kennedy Space Center
2100	KSI	Killed or Seriously Injured
2101	KSU	Kansas State University
2102	KT	Christmas Island (FIPS 10-4 territory code), Knight of the Order of the Thistle, Knights Templar
2103	kT	Kilotesla
2104	KTS	Knight of the Tower and Sword (of Portugal)
2105	KU	Kuwait (FIPS 10-4 country code)
2106	KUW	Kuwait (UNDP country code,IOC and FIFA trigram,but not ISO 3166)
2107	kV	Kilovolt
2108	KV	Kosovo
2109	kW	Kilowatt
2110	KW	Kuwait (ISO 3166 digram)
2111	KWB	Kids' WB!
2112	KWT	Kuwait (ISO 3166 trigram)
2113	KX	Cayman Airways (IATA airline designator)
2114	KY	Cayman Islands (ISO 3166 digram), Kentucky (postal symbol)
2115	KZ	Kazakhstan (FIPS 10-4 country code; ISO 3166 digram)
2116	KZN	KwaZulu-Natal
2117	La	Lanthanum
2118	LA	Laos (FIPS 10-4 country code; ISO 3166 digram), Louisiana (postal symbol), Los Angeles
2119	LAAS	Local Area Augmentation System, Los Angeles Astronomical Society
2120	LAB	Logistics Assault Base
2121	LabVIEW	Laboratory Virtual Instrumentation Engineering Workbench
2122	LACMA	Los Angeles County Museum of Art
2123	LAD	Laser Aiming Device
2124	LADW	Local Air Defence Warning
2125	LAESI	Local Authority & Emergency Service Information
2126	LAN	Local Area Network
2127	LANL	Los Alamos National Laboratory
2128	LAO	Laos (ISO 3166 trigram)
2129	LAR	Light Armoured Reconnaissance, Logistics Assistance Representative
2130	LARC	Livermore Advanced Research Computer (cf. LLNL)
2131	LARP	Live-Action Role-Playing
2132	Laser	Light Amplification by Stimulated Emission of Radiation (cf. Maser)
2133	LAT	Lowest Astronomical Tide (nautical charts),Licensed Athletic Trainer (used in many of the United States; see www.oata.org)
2134	LATA	Local Access Transport Area
2135	LATCH	Lower Anchors and Tethers for Children (U.S. standard for attachment points for child safety seats in passenger cars)
2136	LAV	Land Assault Vehicle, Light Armoured Vehicle, Lymphadenopathy-Associated Virus
2137	LAW	Light Antitank Weapon
2138	LAX	Los Angeles International Airport, The Latin American Xchange (professional wrestling)
2139	LB	Lebanon (ISO 3166 digram)
2140	LBH	Light Battlefield Helicopter, Lyman-Birge-Hopfield bands
2141	LBJ	Lady Bird Johnson,LeBron James,Light Bulb Joke,Little Beagle Johnson (the dog owned by Lyndon and Lady Bird Johnson),Lyndon Baines Johnson
2142	LBN	Lebanon (ISO 3166 trigram)
2143	LBNL	Lawrence Berkeley National Laboratory
2144	LBR	Liberia (ISO 3166 trigram)
2145	LBS	Location-Based Services
2146	LBT	Large Binocular Telescope
2147	LBW	Leg Before Wicket
2148	LBY	Libya (ISO 3166 trigram)
2149	LCA	Saint Lucia (ISO 3166 trigram)
2150	LCC	Land Component Commander
2151	LCCP	Light Contingency Communications Package
2152	LCD	Liquid Crystal Display
2153	LCM	Least/Lowest Common Multiple
2154	LCS	League of Legends Championship Series
2155	LDA	Lateral Drift Apparatus (paratroops)
2156	LDC	Lesser Developing/Developed Country
2157	LDL	Low-Density Lipoprotein
2158	LDV	Local Defence Volunteers (British Home Guard)
2159	LDW	Lane Departure Warning (ADAS)
2160	LE	Lebanon (FIPS 10-4 country code)
2161	LEC	Local Exchange Carrier
2162	LED	Light-Emitting Diode
2163	LEGAD	Legal Advice
2164	Legs	level emotion gad speed
2165	LEMOSS	Long-Endurance MObile Submarine Simulator
2166	LEN	Large Extension Node
2167	LEP	Large Electron-Positron collider
2168	LER	Loss-Exchange Ratio
2169	LEU	Low-Enriched Uranium
2170	LF	Low Frequency
2171	LFO	Low Frequency Oscillation / Oscillator
2172	LFTR	Liquid fluoride thorium reactor
2173	LG	Latvia (FIPS 10-4 country code)
2174	LGM	Little Green Men
2175	LGS	Landsat Ground Station
2176	LHC	Large Hadron Collider
2177	LHS	Left Hand Side
2178	Li	Lithium
2179	LIBOR	London Interbank Offered Rate
2180	LIBS	Laser Induced Breakdown Spectroscopy
2181	LIE	Liechtenstein (ISO 3166 trigram)
2182	LIGO	Laser Interferometer Gravitational-Wave Observatory
2183	LINEAR	Lincoln Near-Earth Asteroid Research
2184	LISA	Laser Interferometer Space Antenna
2185	LIVE	Liquid Inertial Vibration Eliminator
2186	LJJ	Lord Justices of Appeal
2187	LK	Sri Lanka (ISO 3166 digram)
2188	LKA	Sri Lanka (ISO 3166 trigram)
2189	LKR4	Linkwitz-Riley 4th order (audio crossover type)
2190	LLAD	Low Level Air Defence
2191	LLB	Legum Baccalaureus (Latin: Bachelor of Laws)
2192	LLC	Limited Liability Company
2193	LLLTV	Low-Light Level Television
2194	LLNL	Lawrence Livermore National Laboratory
2195	LLP	Limited Liability Partnership
2196	LLTR	Low-Level Transit Route
2197	LMAO	Laughing My Ass Off (Internet shorthand)
2198	LMB	Lick My Balls
2199	LMFAO	Laughing My F**king Ass Off (Internet shorthand,electro-hop duo)
2200	LMN	Lifetime Movie Network
2201	LMS	Like My Status (Internet shorthand)
2202	LMV	() Light Motor Vehicle
2203	LNER	London and North Eastern Railway
2204	LNG	Liquefied Natural Gas
2205	LNO	Liaison Officer
2206	LNR	Ligue Nationale de Rugby (French for: 'National Rugby League')
2207	LO	Slovakia (FIPS 10-4 country code)
2208	LOA	Limit Of Advance
2209	LOC	Level of Operational Capability, Limited Operational Capability
2210	LOD	Limit of Detection,see Detection limit
2211	LoD	Lines of Development (UK)
2212	LOFAR	Low Frequency Analysis and Recording
2213	LOGPAC	Logistics Package
2214	LOL	Laughing Out Loud (Internet shorthand)
2215	LOMEZ	Low Altitude Missile Engagement Zone
2216	LONEOS	Lowell Observatory Near-Earth-Object Search
2217	LOOGY	Lefty One-Out GuY,a sometimes pejorative nickname for the left-handed specialist in baseball
2218	LORTID	LOng Range Target IDentification
2219	LOS	Line Of Sight
2220	LOSAT	Line-Of-Sight Anti-Tank (missile)
2221	LOTA	Licentiate of the Orthodontic Technicians Association
2222	LOTIS	Livermore Optical Transient Imaging System
2223	LOTS	Logistics Over-The-Shore
2224	LP	Linkin Park,Linkup Point,Listening Post,Long Playing record,Louisiana Pacific (cf. LP Field)
2225	LPC	Linear Predictive Coding
2226	LPD	Landing Platform Dock (Navy hull classification),Low Probability of Detection
2227	LPG	Liquefied Petroleum Gas (cf. LNG)
2228	LPI	Low Probability of Intercept
2229	LPS	Landsat Processing System,LipoPolySaccharide
2230	LQ	Palmyra Atoll (FIPS 10-4 territory code)
2231	Lr	Lawrencium
2232	LR	Liberia (ISO 3166 digram)
2233	LRC	Logistics iness Center
2234	LRGW	Long-Range Guided Weapon
2235	LRICBM	Limited Range ICBM
2236	LRIP	Low Rate Initial Production
2237	LRP	Logistics Release Point
2238	LRPE	Long-Range Planning Element
2239	LRS	Long Range Surveillance
2240	LRU	Line-Replaceable Unit
2241	LSAT	Law School Admission Test (often pronounced as 'el-SAT')
2242	LSI	Large-Scale Integration
2243	LSIF	Labour Sponsored Investment Fund
2244	LSND	Liquid Scintillator Neutrino Detector
2245	LSO	Lesotho (ISO 3166 trigram)
2246	LSST	Large Synoptic Survey Telescope
2247	LST	Landing Ship,Tank (World War II; also known,not entirely affectionately,as 'Large Slow Target')
2248	LSVW	Light Support Vehicle,Wheeled
2249	LT	Lesotho (FIPS 10-4 country code),Lithuania (ISO 3166 digram)
2250	Lt	Lieutenant
2251	LtC	Lieutenant-Colonel (U.S.)
2252	LTC	Long-Term Costing
2253	Ltd	Limited
2254	LTDP	Long-Term Defence Plan
2255	LTG	Lieutenant General,Lightning (METAR Code)
2256	LTI	Linear Time-Invariant
2257	LTM	Acronym for Laughing To Myself
2258	LTP	Long-Term Potentiation
2259	LTU	Lithuania (ISO 3166 trigram)
2260	LU	Acronym Love You
2261	LU	Loonatics Unleashed
2262	Lu	Lutetium
2263	LUCA	Last Universal Common Ancestor
2264	LUG	Linux User Group
2265	LULU	Locally Unwanted Land Use (urbanism)
2266	LUT	Limited User Test (ing),Local User Terminal
2267	LUVW	Light Utility Vehicle,Wheeled
2268	LUX	Luxembourg (ISO 3166 trigram)
2269	LV	Las Vegas,Latvia (ISO 3166 digram),Launch Vehicle,Leading Vehicle,Leave,Left Ventricle,Level Valve,Linking Verb,Liverpool Victoria
2270	LVA	Latvia (ISO 3166 trigram)
2271	LVAD	Left Ventricular Assist Device,Low-Velocity Airdrop
2272	LVEF	Left Ventricular Ejection Fraction
2273	LW	Land Warrior,Low Water (nautical charts)
2274	Lw	Lawrencium (obsolete 1963)
2275	LWR	Laser warning receiver
2276	LWRC	Land Warfare Resources Corporation
2277	LWS	Land Warrior System
2278	LX	Electrics (theatrical term)
2279	LX	Luxembourg (amateur radio ITU prefix),Swiss International Air Lines (IATA code)
2280	LY	Libya (FIPS 10-4 country code; ISO 3166 digram),Lithuania (amateur radio ITU prefix)
2281	LYAO	Laugh Your Ass Off
2282	LYLAS	Love You Like A Sister
2283	LZ	Bulgaria (amateur radio ITU prefix),Landing Zone
2284	M	Mega-,One thousand (in Roman numerals)
2285	m	Metre,Milli
2286	MA	Madagascar (FIPS 10-4 country code),Marijuana Anonymous,Master of Arts,Massachusetts (postal symbol),Megaampere,Morocco (ISO 3166 digram)
2287	Ma	Megaannum
2288	mA	Milliampere
2289	MAA	Mathematical Association of America
2290	MAAC	Metro Atlantic Athletic Conference
2291	MACE	Multi-Agent Computing Environment
2292	MACHO	MAssive Compact Halo Object
2293	MADD	Mothers Against Drunk Driving,MyoAdenylate Deaminase Deficiency,Multiply-Add
2294	MAF	Maintenance Action Form
2295	MAGIC	Major Atmospheric Gamma-ray Imaging Cherenkov (telescope)
2296	MAGNETAR	Metaprogrammable AGent NETwork ARchitecture
2297	MAGTF	Marine Air-Ground Task Force
2298	Mahasz	Magyar Hanglemezkiadók Szövetsége (Hungarian for: 'Association of Hungarian Record Companies')
2299	MALD	Miniature Air-Launched Decoy
2300	MANPADS	MAN-Portable Air Defence System
2301	MANPRINT	MANpower and PeRsonnel INTegration
2302	MAO	Molėtų astronomijos observatorija (Moletai Astronomical Observatory),MonoAmine Oxidase
2303	MAOI	Monoamine oxidase inhibitor
2304	MAPS	Monitoring Avian Productivity and Survivorship
2305	MAR	Morocco (ISO 3166 trigram)
2306	MarBEF	Marine Biodiversity and Ecosystem Functioning
2307	MARCENT	United States Marine Forces Central Command
2308	MARFORCC	Marine Force Component Commander
2309	MASAS	Monte Agliale Supernovae and Asteroid Survey
2310	Maser	Microwave Amplification by Stimulated Emission of Radiation
2311	MASH	Mobile Army Surgical Hospital
2312	MASINT	Measurement And Signature Intelligence
2313	MAVS	Mobile Artillery Vehicle System
2314	MBBL	(U.S. Armor Center) Mounted Battlespace Battle Laboratory
2315	MBCC	Migratory Bird Conservation Commission (U.S.)
2316	MBCS	Multi-Byte Character Set
2317	MBI	Moody Bible Institute
2318	MBIDST	Member of the British Institute of Dental and Surgical Technologists
2319	MBM	Meat and Bone Meal
2320	MBT	Main Battle Tank
2321	MBTI	Myers-Briggs Type Indicator
2322	mC	Millicoulomb
2323	MCDL	Model Composition Definition Language
2324	MCFT	Modified Compression Field Theory
2325	MCG	Melbourne Cricket Ground
2326	MCIS	Mellon Collie and the Infinite Sadness
2327	MCM	Mine Counter-Measures
2328	MCMV	Mine Counter-Measure Vessel
2329	MCR	My Chemical Romance
2330	MCSF	Marine Corps Security Forces
2331	MCT	Movement Control Team
2332	MCTIS	Mounted Co-operative Target Identification System
2333	Md	Mendelevium
2334	MDNA	Madonna's 12th studio album title (2012)
2335	MDO	Membership Driven Organisation
2336	MDP	Markov Decision Process
2337	MDT	Mountain Daylight Time (UTC-6 hours)
2338	MDV	Maldives (ISO 3166 trigram)
2339	Me	Messerschmitt
2340	MEAC	Mid-Eastern Athletic Conference (ME-ac)
2341	MECO	Main engine cutoff (NASA code for point in Space Shuttle assent when three main engines are shut down prior to External Tank (ET) separation)
2342	MEDEVAC	Medical evacuation
2343	MEDS	Mission Essential Data Set
2344	MEG	MagnetoEncephaloGraphy
2345	MELT	Metallic Line/Loop Test (ing)
2346	MEMS	Microelectromechanical System
2347	MER	Mars Exploration Rover
2348	MERL	Mitsubishi Electric Research Laboratories
2349	MES	Manufacturing Execution Systems
2350	METAR	[Meteorological] Aviation Routine weather report
2351	METOC	Meteorological and Oceanographic
2352	MeV	Megaelectronvolt
2353	MEX	Mexico (ISO 3166 trigram)
2354	MEZ	Missile Engagement Zone
2355	mF	Millifarad
2356	MGPAM	My Gym Partner's a Monkey
2357	MGS	Mobile Gun System
2358	mH	Millihenry
2359	MHC	Major Histocompatibility Complex
2360	MHHW	Mean Higher High Water (nautical charts)
2361	MHL	Marshall Islands (ISO 3166 trigram)
2362	MHLW	Mean Higher Low Water (nautical charts)
2363	MHRA	(UK) Medicines and Healthcare products Regulatory Agency
2364	MHW	Mean High Water (nautical charts)
2365	MHWN	Mean High Water Neaps (nautical charts)
2366	MHWS	Mean High Water Springs (nautical charts)
2367	MHz	Megahertz
2368	Mi	Mebi
2369	MIA	Missing In Action
2370	MICLIC	Mine Clearing Line Charge
2371	MICOM	Missile Command
2372	MID	Midway Islands (ISO 3166 trigram; obsolete 1986)
2373	MIDAS	Man-machine Integration Design and Analysis System
2374	MIDI	Musical Instrument Digital Interface
2375	MIDS	Multi-Function Information Distribution System
2376	MIFG	Shallow Fog (METAR Code)
2377	MIKE	Monitoring of Illegal Killing of Elephants
2378	MIL	Man-In-the-Loop
2379	MILC	Mirrorless interchangeable-lens camera
2380	MILF	Mother I'd Like to Fuck
2381	MIMOSA	MIcroMeasurements Of Satellite Acceleration
2382	MIMPT	Member of the Institute of Maxillofacial Prosthetists and Technologists
2383	MIRA	MILAN Infra-Red Acquisition (thermal sight)
2384	MIRV	Multiple Independent Reentry Vehicle
2385	MISREP	Mission Report
2386	MISSI	Multilevel Information System Security Initiative
2387	MITL	Man-In-The-Loop
2388	MITS	see entry
2389	mJ	Millijoule
2390	MJD	Modified Julian Day
2391	mK	Millikelvin
2392	MKG	Michael Kidd-Gilchrist (American basketball player)
2393	MKSA	Metre-Kilogram-Second-Ampere (system of units)
2394	mL	Millilitre
2395	MLB	Major League Baseball
2396	MLC	Member of the Legislative Council (in India)
2397	MLE	Maximum likelihood estimation
2398	MLHW	Mean Lower High Water (nautical charts)
2399	MLI	Mali (ISO 3166 trigram)
2400	MLL	Major League Lacrosse
2401	MLLW	Mean Lower Low Water (nautical charts)
2402	MLP	My Little Pony
2403	MLRS	Multiple-Launch Rocket System
2404	MLT	Malta (ISO 3166 trigram)
2405	MLW	Mean Low Water (nautical charts)
2406	MLWN	Mean Low Water Neaps (nautical charts)
2407	MLWS	Mean Low Water Springs (nautical charts)
2408	Mm	Megametre
2409	mm	Millimetre
2410	MMEV	Multi-Mission Effects Vehicle
2411	MMI	Magical MonkeyZ Inc.
2412	MMI	Man-Machine Interface
2413	MMI	McLean Meditation Institute
2414	MMIC	McLean Meditation Institute Certified
2415	MMO	Massively Multiplayer Online (computer game)
2416	MMOR	Master of Management in Operations Research
2417	MMORPG	Massively multiplayer online role-playing game
2418	MMPR	Mighty Morphin Power Rangers
2419	MMS	Multimission Modular Spacecraft
2420	Mn	Manganese
2421	mN	Millinewton
2422	MNB	Multinational Brigade
2423	MNE	Montenegro (ISO 3166 trigram)
2424	MNMF	Multi-National Maritime Force
2425	MNP	Northern Mariana Islands (ISO 3166 trigram)
2426	MNS	Mission Needs Statement
2427	Mo	Molybdenum
2428	MOA	Museum of Art (Brigham Young University)
2429	MOCAS	Mechanization Of Contract Administration Services
2430	MoD	Ministry of Defence (United Kingdom) and various other countries
2431	modem	Modulator-Demodulator
2432	Moe	Marvel of entertainment
2433	MOE	Measure Of Effectiveness
2434	MOF	Ministry of Finance (Japan)
2435	MOFA	Ministry of Foreign Affairs (Japan)
2436	MOID	Minimum Orbital Intersection Distance
2437	MOJWA	Movement for Oneness and Jihad in West Africa
2438	MOLO	Mobile Other Licensed Operator (UK)
2439	MOM	Master's Degree in Oriental medicine
2440	MOM	Message Oriented Middleware
2441	MoM	Multiple of the median
2442	MoMA	Museum of Modern Art (NYC)
2443	MOND	Modified Newtonian Dynamics
2444	MOO	Measure Of Outcome
2445	MOPP	Mission-Oriented Protective Posture
2446	MORP	Meteorite Observation and Recovery Project
2447	MOSFET	Metal-Oxide-Semiconductor Field-Effect Transistor
2448	MOT	Ministry of Transport (UK)
2449	MOTA	Member of the Orthodontic Technicians Association
2450	MOTESS	Moving Object and Transient Event Search System
2451	MOU	Memorandum Of Understanding
2452	MOW	Maintenance of way (also MW)
2453	MOZ	Mozambique (ISO 3166 trigram)
2454	MPa	Megapascal
2455	mPa	Millipascal
2456	MPAA	Motion Picture Association of America
2457	MPEC	Minor Planet Electronic Circular
2458	MPEG	Motion Pictures (Coding) Experts Group
2459	MPEV	Multi-Purpose Engineering Vehicle
2460	MPF	Maritime Prepositioning Force
2461	MPFC	Medial PreFrontal Cortex
2462	MPG	Miles Per Gallon
2463	MPMC	Medial PreMotor Cortex
2464	MPSI	Member of the Pharmaceutical Society of Ireland
2465	MPSoC	MultiProcessor System-on-Chip
2466	MPSRON	Maritime Propositioning Ship Squadron
2467	MR	Mauritania (FIPS 10-4 country code; ISO 3166 digram)
2468	MRAV	Multi-Role Armoured Vehicle
2469	MRBM	Medium Range Ballistic Missile
2470	MRC	Maintenance Requirements Card
2471	MRD	Motorized Rifle Division
2472	MRGW	Medium-Range Guided Weapon
2473	MRI	Magnetic Resonance Imaging
2474	MRL	Multiple Rocket Launcher
2475	MRPharmS	Member of the Royal Pharmaceutical Society (Great Britain)
2476	MRS	Magnetic Resonance Spectroscopy
2477	MRSA	Methicillin-resistant Staphylococcus aureus
2478	MRTFB	U.S. Major Range and Test Facility Base
2479	Ms	Megasecond
2480	mS	Millisiemens
2481	MSD	Minimum Safe Distance
2482	MSDB	Multi Source Data Base
2483	MSE	Multiple Subscriber Element
2484	MSG	Message
2485	MSLP	Mean Sea Level Pressure
2486	MSNBC	Microsoft National Broadcasting Company Cable news channel (see also msnbc.com)
2487	MSO	Multiple System Operator
2488	MSPB	Merit Systems Protection Board
2489	MSSA	Methicillin-susceptible Staphylococcus aureus
2490	Mt	Meitnerium
2491	mT	Millitesla
2492	MTBF	Mean Time Between Failures
2493	MtF	Male-to-female transsexual
2494	MTG	Magic: The Gathering
2495	MTQ	Martinique (ISO 3166 trigram)
2496	MTT	Methylthiazol tetrazolium (assay)
2497	MTTF	Mean Time To Failure
2498	MTTR	Mean Time To Recover
2499	MTWS	MAGTF Tactical Warfare System
2500	MUS	Mauritius (ISO 3166 trigram)
2501	mV	Millivolt
2502	MVC	Missouri Valley Conference
2503	MVFC	Missouri Valley Football Conference
2504	MVNO	Mobile virtual network operator
2505	mW	Milliwatt
2506	MWESH	Machismo Wizards Extended SHelter (operating system)
2507	MWI	Malawi (ISO 3166 trigram)
2508	MWOA	Mount Wilson Observatory Association
2509	MWTB	Mounted Warfare Test Bed
2510	MY	Malaysia (FIPS 10-4 country code; ISO 3166 digram)
2511	MYOB	Mind Your Own Business
2512	MYS	Malaysia (ISO 3166 trigram)
2513	MYT	Mayotte (ISO 3166 trigram)
2514	n	Nano
2515	N3F	National Fantasy Fan Federation
2516	nA	Nanoampere
2517	Na	Sodium (Latin Natrium)
2518	NAA	N-Acetylaspartate
2519	NAAD	North American Air Defense
2520	NAAQS	National Ambient Air Quality Standards
2521	NAAWS	NATO Anti-Air Warfare System
2522	NAC	National Agency Check,U.S. Naval Avionics Center,U.S. Navy Advanced Concepts,North Atlantic Council,Northern Area Command
2523	NACC	North Atlantic Cooperation Council
2524	NACISA	NATO Communications and Information Systems Agency
2525	NACMA	NATO Air Command and Control System Management Agency
2526	NACRA	North America Caribbean Rugby Association (more specifically rugby union)
2527	NAEC	U.S. Naval Air Engineering Center
2528	NAFERA	Native American Free Exercise of Religion Act
2529	NAFLD	NonAlcoholic Fatty Liver Disease
2530	NAFO	Northwest Atlantic Fisheries Organization
2531	NAFTA	North American Free Trade Agreement
2532	NAGPRA	Native American Graves Protection and Repatriation Act
2533	NAICS	North American Industry Classification System
2534	NAIL	Neurotics Anonymous
2535	NAILS	National Airspace Integrated Logistics System
2536	NAIRU	Non Accelerating Inflation Rate of Unemployment
2537	NAK	Negative Acknowledge
2538	NAM	Namibia (ISO 3166 trigram)
2539	NAMBLA	North American Man-Boy Love Association
2540	NAMRL	Naval Aerospace Medical Research Laboratory
2541	NaN	Not A Number (computing)
2542	NAO	UK National Audit Office
2543	NAPS	Navy Acquisition Procedures Supplement
2544	NARA	(U.S.) National Archives and Records Administration
2545	NARAL	National Abortion Rights Action League
2546	NARDAC	Naval Regional Data Automation Center
2547	NARDIC	U.S. Navy Acquisition Research and Development Information Center
2548	NARPV	National Association for Remotely Piloted Vehicles
2549	NASCAR	National Association for Stock Car Auto Racing
2550	NASDAQ	National Association of Securities Dealers Automated Quotations
2551	NASED	National Association of State Election Directors [1][2]
2552	NASH	Non-Alcoholic Steatohepatitis
2553	NASP	National Aerospace Plane
2554	NASS	National Association of Secretaries of State [3]
2555	NatGeo	National Geographic
2556	NaUKMA	National University of Kyiv-Mohyla Academy
2557	NAV	Navigation[al]
2558	NAVCAMS	Naval Communications Area Master Station
2559	NAVCC	National Audio-Visual Conservation Center
2560	NAVCENT	Naval Forces U.S. Central Command
2561	NAVDAC	Naval Data Automation Command
2562	NAVEUR	Naval Forces U.S. European Command
2563	NAVFOR	Naval Force
2564	NAVMACS	Naval Modular Automatic Communication Subsystem
2565	NAVNET	Navy Network
2566	NAVS	Non-Cooperative Airborne Vector Scoring
2567	NAVSAT	Navigation Satellite
2568	NAVSPACECOM	U.S. Navy Space Command
2569	NAVSPASUR	U.S. Naval Space Surveillance System
2570	NAVSTAR	Navigation Satellite Timing And Ranging
2571	NAVTACNET	Navy Tactical Network
2572	NAWC	U.S. Naval Air Warfare Center
2573	Nb	Niobium
2574	NBA	National Basketball Association
2575	NBL	National Basketball League (Australia)
2576	NBT	Nitroblue tetrazolium (assay)
2577	nC	Nanocoulomb
2578	NCA	National Command Authority
2579	NCAR	U.S. National Center for Atmospheric Research
2580	NCB	National Codification Bureau
2581	NCCAM	U.S. National Center for Complementary and Alternative Medicine
2582	NCCUSL	National Conference of Commissioners on Uniform State Laws (U.S.)
2583	NCDDR	U.S. National Center for the Dissemination of Disability Research
2584	NCI	U.S. National Cancer Institute
2585	NCL	New Caledonia (ISO 3166 trigram)
2586	NCLR	National Council of La Raza
2587	NCMO	No Commitment Make Out
2588	NCO	Non-Commissioned Officer
2589	NCP	Net Contracted Purchases
2590	NCR	National Cash Register Co.
2591	NCTR	Non-Co-operative Target Recognition
2592	NCW	Network Centric Warfare
2593	Nd	Neodymium
2594	NDAA	U.S. National Defense Authorization Act
2595	NDBP	Non-Departmental Public Body (Scotland)
2596	NDP	New Democratic Party (Canada)
2597	NDS	Nintendo DS
2598	Ne	Neon
2599	NECTEC	National Electronics and Computer Technology Center (Thailand)
2600	NEMS	National Energy Modeling System (USDOE-EIA)
2601	NEPA	National Environmental Policy Act
2602	NER	Niger (ISO 3166 trigram)
2603	NERICA	New Rice for Africa
2604	NESP	NSA/CSS Enterprise Standards Program
2605	NET	National Educational Television
2606	NETCU	(UK) National Extremism Tactical Co-ordination Unit
2607	NETL	(US) National Energy Technology Laboratory
2608	NETWARS	Network Warfare Simulation
2609	NEX	Navy EXchange
2610	nF	Nanofarad
2611	NF	Norfolk Island (ISO 3166 digram)
2612	NFER	National Foundation for Educational Research
2613	NFG	No Fucking Good
2614	NFHS	National Federation of State High School Associations
2615	NFI	Not F****** Interested
2616	NFK	Norfolk Island (ISO 3166 trigram)
2617	Nfld	Newfoundland
2618	NFPA	National Fluid Power Association (United States)
2619	NFT	No Further Text
2620	NGA	U.S. National Geospatial-Intelligence Agency, Nigeria (ISO 3166 trigram)
2621	NGATS	New Generation Army Targetry System
2622	NGH	Northern General Hospital
2623	NGO	non-governmental organization
2624	NGS	Naval Gunfire Support
2625	nH	Nanohenry
2626	NHANES	National Health and Nutrition Examination Survey
2627	NHB	New Hebrides (ISO 3166 trigram; obsolete 1980)
2628	NHB	No Holds Barred radio (Link)
2629	NHL	National Hockey League
2630	NHRA	National Hot Rod Association
2631	NHS	National Health Service (UK)
2632	Ni	Nickel
2633	NIAAA	U.S. National Institute on Alcohol Abuse and Alcoholism
2634	NIAG	NATO Industrial Advisory Group
2635	NIAID	National Institute of Allergies and Infectious Disease
2636	NIAMD	National Institute of Arthritis and Musculoskeletal Diseases
2637	NIB	New In Box (Internet auction/trading listings)
2638	NIBP	Non-invasive blood pressure monitor
2639	NicA	Nicotine Anonymous
2640	NICAP	National Investigations Committee on Aerial Phenomena
2641	NICE	UK. National Institute for Health and Clinical Excellence
2642	NICHD	National Institute of Child Health and Human Development [4]
2643	NICP	National Inventory Control Point
2644	NIDDK	National Institute of Diabetes and Digestive and Kidney Diseases
2645	NIDRR	National Institute on Disability Research and Rehabilitation
2646	NIEHS	National Institute of Environmental Health Sciences
2647	NIIN	National Item Identification Number
2648	NIMA	National Imagery and Mapping Agency (became NGA)
2649	NIMBY	Not In My Back Yard (See NOME)
2650	NIMG	Not In My Generation
2651	NIN	Nine Inch Nails (band)
2652	NIPR	National Institute of Polar Research (Japan)
2653	NIR	Northern Ireland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
2654	NISAC	U.S. National Infrastructure Simulation and Analysis Center
2655	NISCAP	NSA Information System Certification and Accreditation Program
2656	NISER	National Institute of Science Education and Research
2657	NIST	National Institute of Standards and Technology
2658	NITFS	National Imagery Transmission Format Standard
2659	NIU	Niue (ISO 3166 trigram)
2660	nJ	Nanojoule
2661	NJ	New Jersey (postal symbol)
2662	NJHS	National Junior Honor Society
2663	NJPW	New Japan Pro Wrestling
2664	nK	Nanokelvin
2665	NKA	No Known Allergies
2666	nL	Nanolitre
2667	NLB	Non-Linear Battlefield
2668	NLD	Netherlands (ISO 3166 trigram)
2669	NLF	National Liberation Front (disambiguation)
2670	NLL	National Lacrosse League
2671	NLW	Non-Lethal Weapon
2672	nm	Nanometre
2673	NM	New Mexico (postal symbol)
2674	NMCI	Navy Marine Corps Intranet
2675	NMCS	Not Mission Capable Supply (SM&R code)
2676	NMD	U.S. National Missile Defense
2677	NMN	No middle name
2678	NMR	Nuclear Magnetic Resonance
2679	NMSG	NATO Modelling and Simulation Group
2680	nN	Nanonewton
2681	NNE	North North-East
2682	NNSA	U.S. National Nuclear Security Administration
2683	NNW	North North-West
2684	No	Nobelium
2685	NOAA	U.S. National Oceanic and Atmospheric Administration
2686	NOAF	Norwegian Air Force
2687	NOAO	National Optical Astronomy Observatory
2688	NOC	UK. National Oceanography Centre
2689	NODEF	NATO Oceanographic Data Exchange Format
2690	NOGI	New Orleans Grande Isle (award for diving)
2691	NOLF	Navy OutLying Field
2692	NOME	Not on Mars Either
2693	NOME	Not on Mars Either (see NIMBY)
2694	NOR	Norway (ISO 3166 trigram)
2695	NORELPREF	No religious preference
2696	NORTHAG	Northern Army Group
2697	NOSA	NATO OSI Security Architecture
2698	NOTAFLOF	No One Turned Away For Lack Of Funds
2699	NOW	National Organization for Women
2700	NP	Nepal (ISO 3166 and FIPS 10-4 country code digram)
2701	NPB	Nippon Professional Baseball
2702	NPCS	Non-Passenger Coaching stock (in Railways)
2703	NPD	Nationaldemokratische Partei Deutschlands (German)
2704	NPDI	New Product Development and Introduction
2705	NPG	Needline/Network Participation Group
2706	NPH	Normal Pressure Hydrocephalus
2707	NPO	nothing by mouth
2708	NPOV	Neutral Point Of View
2709	NQ	Dronning Maud Land (ISO 3166 digram; obsolete 1983)
2710	NR	Nauru (ISO 3166 and FIPS 10-4 country code digram)
2711	NRA	National Rifle Association
2712	NRAO	National Radio Astronomy Observatory
2713	NRDC	(U.S.) Natural Resources Defense Council
2714	NREL	U.S. National Renewable Energy Laboratory
2715	NRK	Norsk Rikskringkasting (Norwegian Broadcasting Corporation)
2716	NRMP	National Resident Matching Program (U.S. medicine)
2717	NRO	U.S. National Reconnaissance Office
2718	NRT	Near Real Time
2719	NRU	Nauru (ISO 3166 trigram)
2720	ns	Nanosecond
2721	nS	Nanosiemens
2722	NSABB	National Science Advisory Board for Biosecurity
2723	NSAID	Non-Steroidal Anti-Inflammatory Drug
2724	NSB	Norges Statsbaner (Norwegian State Railways)
2725	NSC	National Security Council
2726	NSDL	National Science Digital Library (US)
2727	NSG	National System for Geospatial-Intelligence
2728	NSN	National Stock Number
2729	NSNA	National Student Nurses' Association
2730	NSO	National Standardization Office (ABCA)
2731	NSS	(U.S.) Naval Simulation System
2732	NST	(UK) Nimrod Software Team
2733	NSTAC	National Security Telecommunications Advisory Committee
2734	NSW	New South Wales (postal symbol)
2735	nT	Nanotesla
2736	NTDS	Naval Tactical Data System
2737	NTP	Network Time Protocol
2738	NTR	Network Time Reference
2739	NTRA	National Thoroughbred Racing Association
2740	NTSB	National Transportation Safety Board
2741	NTV	Non-Tactical Vehicle
2742	NTY	(Internet Abbreviations:) Not Tested Yet; (Alternatively) No Thank You
2743	NTZ	Iraq-Saudi Arabia Neutral Zone (ISO 3166 trigram; obsolete 1993)
2744	NUTS	Nuclear Utilization Target Selection
2745	NUWC	U.S. Naval Undersea Warfare Center
2746	nV	Nanovolt
2747	NVEOL	Night Vision and Electro-Optics Laboratory
2748	NVG	Night Vision Goggles
2749	NVL	Night Vision Laboratory
2750	nW	Nanowatt
2751	NW	North-West
2752	NW	Nuclear Weapon
2753	NWA	National Wrestling Alliance
2754	NWF	National Wildlife Federation
2755	NWFZ	Nuclear-Weapon-Free Zone
2756	NWHN	U.S. National Women's Health Network
2757	nWo	New World Order (see article for explanation of idiosyncratic capitalization)
2758	NWOAHM	New Wave of American Heavy Metal
2759	NWOBHM	New Wave of British Heavy Metal (sometimes pronounced /n.ˈwɒbm/ as if it were an acronym)
2760	NWRA	National Wildlife Rehabilitators Association
2761	NWSL	National Women's Soccer League (U.S.)
2762	NWT	North-West Territories
2763	NXA	21st arcade game in the Pump It Up series
2764	NXD	Native XML
2765	NXE	New Xbox Experience
2766	NXG	New Cross Gate station
2767	NXL	National XBall League
2768	NXN	Nike Cross Nationals
2769	NY	New York (postal symbol)
2770	NYC	New York City
2771	NYT	New York Times
2772	NYHA	New York Heart Association
2773	NYO	National Youth Orchestra of Great Britain
2774	NYSE	New York Stock Exchange
2775	NZ	New Zealand (ISO 3166 and FIPS 10-4 country code digram)
2776	NZC	New Zealand Cricket
2777	NZL	New Zealand (ISO 3166 trigram)
2778	NzL	Noze looan (online/event listings)
2779	NZOSS	New Zealand Open Source Society
2780	NZRU	New Zealand Rugby Union
2781	OAC	On Approved Credit
2782	OAP	Old Age Pensioner (UK)
2783	OARSI	Osteoarthritis Research Society International
2784	OAS	Organization of American States
2785	OASIS	Ontario Agencies Supporting Individuals with Special Needs
2786	OASIS	Ontario Association of Sewage Industry Services
2787	OASP	Operational Analysis Support Paper/Plan
2788	OAU	Organization for African Unity
2789	OBE	Officer of the Order of the British Empire
2790	OBX	Outer Banks (North Carolina)
2791	OC	Officer Commanding
2792	OCD	Obsessive-Compulsive Disorder
2793	OCFS	Oracle Cluster File System
2794	OCFS2	Oracle Cluster File System Release 2
2795	OCMCC	[2] Orchard County MCC
2796	OCN	Oncology Certified Nurse
2797	OCO	Oort Cloud Object
2798	OCR	Optical Character Recognition
2799	OCS	see entry
2800	ODAS	OCA-DLR Asteroid Survey
2801	ODBC	Open DataBase Connectivity
2802	OEA	(U.S.) Office of Economic Adjustment
2803	OECD	Organisation for Economic Co-operation and Development (international)
2804	OED	Oxford English Dictionary
2805	OEG	Operation Exposure Guidance
2806	OEIS	On-Line Encyclopedia of Integer Sequences
2807	OEM	Original Equipment Manufacturer
2808	OFA	Occipital Face Area
2809	OFDA	U.S Agency for International Development's Office of Foreign Disaster Assistance
2810	OGC	Open Geospatial Consortium
2811	OGD	Other Government Department
2812	OGO	Other Government Organization
2813	OH	Ohio (postal symbol)
2814	OHC	OverHead-Cam engine
2815	OHHLA	Original Hip-Hop Lyrics Archive
2816	OHIP	Ontario Health Insurance Plan
2817	OHMS	On Her (or His) Majesty's Service (also written: O.H.M.S.)
2818	OHP	Observatoire de Haute-Provence
2819	OHSS	Ovarian Hyperstimulation Syndrome
2820	OIC	Officer In Charge
2821	OIF	Operation Iraqi Freedom
2822	OIOC	Oriental & India Office Collections (in the British Library)
2823	OJT	On-the-Job Training
2824	OKC	Oklahoma City
2825	OLED	Organic Light-Emitting Diode
2826	OLS	Operational Linescan System
2827	OMD	Orchestral Manoeuvres in the Dark (1980s pop group)
2828	OME	Osaka Mercantile Exchange
2829	OMFG	Oh My Fucking God
2830	OMG	Oh My God or Or My Gosh
2831	OMGW	Oh My Gosh it's Windy
2832	OMN	Oman (ISO 3166 trigram)
2833	OMNCS	U.S. Office of the Manager for the National Communications System
2834	OMP	Order of Mapungubwe in Platinum
2835	OMS	Order of Mapungubwe in Silver
2836	OMT	Object Model Template
2837	ON	Ontario (postal symbol)
2838	ONC	Orthopaedic Nurse Certified
2839	ONG	Orthodontic National Group
2840	ONI	(U.S.) Office of Naval Intelligence
2841	ONS	Operational Needs Statement
2842	OOAD	Object Oriented Analysis and Design
2843	OOBE	Out-of-body experience
2844	OOCL	Orient Overseas Container Line
2845	OODA	Observation,Orientation,Decision,Action loop (a.k.a. Boyd's Loop)
2846	OOF	Out of Facility
2847	OOMF	One Of My Followers
2848	OOO	Out Of the Office
2849	OOTW	Operations Other Than War
2850	OP	Observation Point/Post,Ocean Pacific (surfwear and swimwear brand),Original Poster (internet),Order Point,in inventory management; the inventory state at which more items should be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached,order OQ new items),Overpowered,often used to refer to fictional characters (e.g. Superman) or game mechanics (e.g. the Black Lotus in Magic: the Gathering) that are considered disproportionately strong
2851	OPAC	Online Public Access Catalogue
2852	OPCON	Operational control
2853	OPCW	Organisation for the Prohibition of Chemical Weapons
2854	OPEC	Organization of the Petroleum Exporting Countries
2855	OPFOR	Opposing force
2856	OPINTEL	Operational Intelligence
2857	OPLAN	Operation plan (also OpPlan)
2858	OPORD	Operation order
2859	OPSEC	Operations security,Open Platform for Security
2860	OPSI	Overwhelming post splenectomy infection,UK Office of Public Sector Information
2861	OPTAR	Operational target
2862	OPV	Offshore Patrol Vessel
2863	OQ	Order Quantity,in inventory management; the quantity of new items to be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached,order OQ new items)
2864	OR	Operating Room (surgery),Operational/Operations Research,Oregon (postal symbol),overreciprocation,when the leader of an inner circle friendship contacts a friend more than is wanted or reasonable
2865	ORAU	Oak Ridge Associated Universities
2866	ORB	Object Request Broker
2867	ORBAT	Order of Battle
2868	ORD	Office of Research and Development,Operational Requirements Document
2869	ORF	Operational iness Float
2870	ORISE	Oak Ridge Institute for Science and Education
2871	ORNL	Oak Ridge National Laboratory
2872	ORR	Oak Ridge Reservation (U.S. DOE),Office of Rail Regulation (UK government),Office of Refugee Resettlement,(CIA) Office of Research and Reports,Operational iness Rate,Operational iness Review
2873	ORSA	Oxacillin-resistant Staphylococcus aureus,Operations Research Society of America
2874	OS	Operating System
2875	Os	Osmium
2876	OSA	Order of St. Augustine
2877	OSCE	Organisation for Security and Cooperation in Europe
2878	OSD	U.S. Office of the Secretary of Defense,On-screen Display
2879	OSDL	Open Source Development Labs
2880	OSE	Own Separate Entrance
2881	OSERS	U.S. Department of Education Office of Special Education and Rehabilitative Services
2882	OSETI	Optical SETI also Optical SETI
2883	OSHA	Occupational Safety and Health Administration
2884	OSI	Office of Strategic Influence,Ontario Swine Improvement,Open Source Initiative,Open Systems Interconnection
2885	OSIA	(U.S.) On-Site Inspection Agency
2886	OSIRIS	Optical,Spectroscopic,and Infrared Remote Imaging System (astronomical system on the Rosetta spacecraft),Optical System for Imaging and low Resolution Integrated Spectroscopy (astronomical system on the land-based Gran Telescopio Canarias)
2887	OSL	Open Source License, Optically Stimulated Luminescence, Orbiting Solar Laboratory
2888	OSM	One Saturday Morning
2889	OSOTPBOIAS	One Sec,On The Phone,Be Off In A Sec
2890	OSPA	Operations Security Professional's Association site of OSPA
2891	OSPA	Oregon School Psychologists Association [3]
2892	OSRH	Oružane Snage Republike Hrvatske (en: Armed forces of the Republic of Croatia)
2893	OSU	Ohio State University,Oklahoma State University
2894	OTA	Office of Technology Assessment, Orthodontic Technicians Association
2895	OTAC	Orthodontic Technicians Association Conference,Orthodontic Technicians Association Council
2896	OTC	Over-The-Counter (drugs)
2897	OTD	Off the derech (referring to an Orthodox Jew who has stopped practicing the tenets of his or her faith)
2898	OTEA	(U.S. Army) Operational Test Evaluation Agency
2899	OTI	Office of Transition Initiatives (United States Agency for International Development)
2900	OTOH	On The Other Hand
2901	OTS	Off the scale,sexually untouchable except for a lot of money
2902	OTSBH	Over The Shoulder Boulder Holder
2903	OTW	On The Way
2904	OTYBL	Over To You Blue Leader
2905	OTYRL	Over To You Red Leader
2906	OU	University of Oklahoma
2907	OW	Old Wykehamist
2908	OWN	Oprah Winfrey Network
2909	OX	IATA code for Orient Thai Airlines
2910	OXC	Optical cross-connect
2911	OXM	Official Xbox Magazine
2912	OXT	Oxytocin
2913	OZ	(?) Australia
2914	p	pico
2915	P2P	Peer-to-peer (networking)
2916	pA	picoampere
2917	PAA	Position Area for Artillery
2918	PABX	Private Automated Branch eXchange (company phone system)
2919	PACOM	(U.S.) Pacific Command
2920	PADI	Professional Association of Diving Instructors
2921	PAEK	PolyArylEtherKetone
2922	PAFC	Plymouth Argyle Football Club
2923	PAH	Polycyclic aromatic hydrocarbon
2924	PAHO	Pan American Health Organization
2925	PAK	Pakistan (ISO 3166 trigram)
2926	PAM	Precision Attack Missile
2927	PANS	Pretty Advanced/Awesome Network Services (cf. POTS)
2928	PARC	Palo Alto Research Center
2929	PAROS	Prevention of an Arms Race in Outer Space (treaty)
2930	PARP	(NATO Partnership for Peace) Planning And Review Process
2931	PARWIG	Power Augmented Ram Wing In Ground (aeroplane wing shape)
2932	PAS	See entry
2933	PASR	Personnel Accounting and Strength Reporting
2934	PATH	Port Authority Trans-Hudson
2935	PAYD	Pay As You Drive
2936	PAYE	Pay As You Earn
2937	Pb	Lead (Latin Plumbum)
2938	PB	PolyButylene
2939	PBB	PolyBrominated Biphenyl
2940	PBCK	Problem Between Chair and Keyboard (computer help desk in-joke)
2941	PBD	PolyButaDiene
2942	PBDE	PolyBrominated Diphenyl Ether
2943	PBI	PolyBenzImidazole
2944	PBN	PolyButylene Naphthalate
2945	PBOH	Please Become Old History
2946	PBT	PolyButylene Terephthalate
2947	PBX	Private Branch eXchange (company phone system)
2948	pC	picocoulomb
2949	PCAS	Planet-Crossing Asteroid Survey
2950	PCB	see entry
2951	PCCB	Porsche Ceramic Composite Brake
2952	PCCIP	President's Commission on Critical Infrastructure Protection
2953	PCE	PerChlorEthylene
2954	PCIe	Peripheral Component Interconnect Express (computer bus)
2955	PCL	Passive Coherent Location
2956	PCMCIA	Personal Computer Memory Card International Association (People Can't Memorise Computer-Industry Acronyms)
2957	PCN	Pitcairn Islands (ISO 3166 trigram)
2958	PCPI	Physician Consortium for Performance Improvement (AMA)
2959	PCR	Polymerase chain reaction
2960	PCSSD	Pulaski County Special School District
2961	PCZ	Panama Canal Zone (ISO 3166 trigram; obsolete 1980)
2962	Pd	Palladium
2963	PD	Product Director—Example: CERDEC Product Director C4ISR and Network Modernization
2964	PDL	Pure Dumb Luck (Texan punk band)
2965	PDN	Pull-Down Network
2966	PDRY	People's Democratic Republic of Yemen (obsolete since 1990)
2967	PDT	Pacific Daylight [Saving] Time (UTC-7 hours)
2968	PE	Professional Engineer
2969	PEBCAC	Problem Exists Between Chair and Computer (IT help desk in-joke)
2970	PEBKAC	Problem Exists Between Keyboard and Chair (ditto)
2971	PEEK	PolyEtherEtherKetone
2972	PEET	Partnerships for Enhancing Expertise in Taxonomy
2973	PEK	PolyEtherKetone
2974	PEPFAR	President's Emergency Plan For AIDS Relief
2975	PER	Peru (ISO 3166 trigram)
2976	perl	usually lower case Practical Extraction and Report Language
2977	PES	PolyEtherSulfone
2978	PEST	UK Public Engagement with Science and Technology
2979	PETE	PolyEthyleneTErephthalate
2980	PETP	PolyEthyleneTerePhthalate
2981	pF	picofarad
2982	PFD	Permanent Fund Dividend = personal flotation device
2983	PFE	Permanent Forest Estate
2984	PfP	Partnership for Peace
2985	Pg	petagram
2986	pg	picogram
2987	PGCE	Postgraduate Certificate in Education
2988	PGD	Pre-implantation Genetic Diagnosis
2989	PGENI	Pharmaco-Genetics for Every Nation Initiative
2990	PGH	Pre-implantation Genetic Haplotyping
2991	PGM	Precision-Guided Munition
2992	PGP	Pretty Good Privacy
2993	PHL	Philippines (ISO 3166 trigram)
2994	PHQ	Patient Health Questionnaire
2995	Pi	Pebi
2996	PIB	PolyIsoButylene
2997	PIC	Person In Charge
2998	PICNIC	Problem In Chair Not In Computer
2999	PICS	Private Investment Capital Subscription
3000	PIF	Partners in Flight
3001	PIG	Pipeline Inspection Gauge
3002	PIN	Personal Identification Number
3003	PINF	People In Need Foundation (Czech charitable organisation)
3004	PIPA	Program on International Policy Attitudes
3005	PIR	Priority Intelligence Requirement
3006	PIRA	Provisional Irish Republican Army
3007	PIREPS	Pilot Reports
3008	PITA	Pain In The Ass
3009	PJ	petajoule
3010	pJ	picojoule
3011	PJHQ	Permanent Joint Headquarters
3012	PKE	Partnership of Kindermusik Educators [1] &[2] & [2]
3013	PKI	Public Key Infrastructure (cryptography)
3014	PKU	Phenylketonuria
3015	pL	picolitre
3016	PLAID	Precision Location and Identification
3017	PLB	Personal Locator Beacon
3018	PLC	Public Limited Company (British)
3019	PLCC	Plastic Leaded Chip Carrier (electronics)
3020	PLD	Probable Line of Deployment
3021	PLEBS	People Lacking Everyday Basic Skills
3022	PLF	Parachute Landing Fall
3023	PLIF	Planar Laser-Induced Fluorescence
3024	PLL	Phase-Locked Loop (electronics)
3025	PLM	Polarized Light Microscope/Microscopy
3026	PLMBA	Phospholipid Bilayer Microarray
3027	Pln	Platoon
3028	PLO	Palestine Liberation Organization
3029	PLOKTA	Press Lots Of Keys To Abort
3030	PLP	Platonic Life Partner
3031	PLUTO	Pipe Line Under The Ocean
3032	PLW	Palau (ISO 3166 trigram)
3033	pm	picometre
3034	PMC	Primary Motor Cortex
3035	PMI	Positive Material Identification
3036	PMID	PubMed Identifier
3037	PMMA	PolyMethylMethAcrylate
3038	PMS	Premenstrual Syndrome
3039	PMSL	Piss Myself Laughing (Internet shorthand)
3040	PMT	Premenstrual Tension (UK) (see Premenstrual Syndrome)
3041	pN	piconewton
3042	PNAC	Project for the New American Century
3043	PNVS	Pilot Night Vision Sensor
3044	Po	Polonium
3045	PO	Post Office
3046	PO	Purchase Order
3047	POCD	Post-Operative Cognitive Dysfunction
3048	pod	Plain Old Documentation
3049	POFF	Plain Old Flat File
3050	POGO	Project On Government Oversight
3051	POI	Program Of Instruction
3052	POK	Plane Of Knowledge
3053	POLAD	Political Advice
3054	POMDP	Partially observable Markov decision process
3055	PooS	Poo Sniffer (Internet shorthand)
3056	POS- Point Of Sale terminal (retail industry transaction computers)	Piece Of S**t
3057	POSH	Port Outbound Starboard Home (alleged)
3058	POSSLQ	Person of the Opposite Sex Sharing Living Quarters
3059	POT	Plane Of Tranquility
3060	POTS	Plain Old Telephone Service (cf. PANS),Postural Orthostatic Tachycardia Syndrome
3061	POTUS	President of the United States
3062	POV	Point of view
3063	POW	Prisoner of war
3064	PPASC	(U.S.) Plans and Program Analysis Support Center
3065	PPCLI	Princess Patricia's Canadian Light Infantry (regiment)
3066	PPLI	Precise Participant Location & Identification
3067	PPM	Project Planning and Management
3068	PPO	PolyPhenylene Oxide
3069	PPQN	Pulses Per Quarter Note (ditto)
3070	PPQT	Pre-Production Qualification Test
3071	PPV	Pay-per-view
3072	Pr	Pastor, Priest
3073	PR	Public Relations
3074	Prb	Presbyter
3075	PRBO	Point Reyes Bird Observatory
3076	PRC	People's Republic of China
3077	PRD	CERDEC Product Realization Directorate
3078	PRFG	Partial Fog (METAR Code)
3079	PRI	Puerto Rico (ISO 3166 trigram)
3080	PRK	Democratic People's Republic of Korea (ISO 3166 trigram)
3081	PRM	Personnel iness Management
3082	PRY	Paraguay (ISO 3166 trigram)
3083	Ps	petasecond
3084	pS	picosiemens
3085	PSG	Pacific Seabird Group
3086	PSI	Portable Source Initiative
3087	PSI	Pounds per square inch
3088	PSS	Personnel System Support
3089	PST	Pacific Standard Time (UTC-8 hours)
3090	PSU	Pennsylvania State University
3091	PsyOp	Psychological Operations
3092	pT	picotesla
3093	Pt	Platinum
3094	PTA	Parent-Teacher Association
3095	PTAL	Public Transport Accessibility Level
3096	PTES	People's Trust for Endangered Species
3097	PTFE	PolyTetraFluoroEthylene
3098	PTI	Pardon the Interruption
3099	PTSD	Post-Traumatic Stress Disorder
3100	Pu	Plutonium
3101	Pub	Publication
3102	PUG	PET Users Group
3103	PUN	Pull-Up Network
3104	PUP	Pull-Up Point
3105	PUS	United States Miscellaneous Pacific Islands (ISO 3166 trigram; obsolete 1986)
3106	PV	petavolt
3107	pV	picovolt
3108	PvE	Player versus Environment
3109	PvP	Player versus Player
3110	PVR	Personal Video Recorder
3111	PvZ	Plants vs. Zombies
3112	PW	Palau (postal symbol; ISO 3166 digram)
3113	pW	picowatt
3114	PWA	Pirates With Attitude
3115	PWBA	Pension and Welfare Benefits Administration
3116	PWC	PieceWise Constant (describing a mathematical function)
3117	PwC	PricewaterhouseCoopers (international accounting firm)
3118	PWL	PieceWise Linear (describing a mathematical function)
3119	PWLC	PieceWise Linear and Concave/Convex (describing a mathematical function)
3120	PWR	Pressurized Water Reactor
3121	PX	Post eXchange
3122	PYF	French Polynesia (ISO 3166 trigram)
3123	PYMWYMI	Put Your Money Where Your Mouth Is
3124	Q1	First quarter of the year
3125	Q2	Second quarter of the year
3126	Q3	Third quarter of the year
3127	Q4	Fourth quarter of the year
3128	QA	Qatar (FIPS 10-4 country code; ISO 3166 digram)
3129	Qantas	Queensland And Northern Territory Aerial Services
3130	QAT	Qatar (ISO 3166 trigram)
3131	QB	Quarterback (football)
3132	QCD	Quantum ChromoDynamics
3133	QD	quaque die (Latin for 'daily')
3134	QDR	Quadrennial Defense Review
3135	QEH	Queen Elizabeth's Hospital
3136	QK	Air Canada Jazz (IATA airline designator)
3137	QNH	Regional mean sea level atmospheric pressure (aeronautical Q code)
3138	QPS	Quark Publishing System
3139	QS	quantum sufficit (Latin, 'as much as suffices')
3140	QSCAT	Quick Scatterometer satellite
3141	QSL	Québec Sign Language
3142	QSO	Quasi-Stellar Object
3143	Quango	(British Commonwealth) QUasi Autonomous Non-Governmental Organisation
3144	Quasar	Quasi-stellar radio source
3145	QUB	Queen's University Belfast
3146	QUIET	Q and U Imaging ExperimenT (Q and U are the Stokes parameters of the CMBR polarization)
3147	qv	quod vide (Latin, 'which see')
3148	QZ	Awair (IATA airline designator)
3149	R2I	Resistance to Interrogation
3150	RA	Radio Australia
3151	Ra	Radium
3152	RAAF	Royal Australian Air Force
3153	Rabobank	Raiffeisen-Boerenleenbank (from the two banks that merged to form the modern company)
3154	RACK	Risk Aware Consensual Kink (SM phrase)
3155	Racon	RAdar beaCON
3156	RADA	Royal Academy of Dramatic Art
3157	Radar	Radio Detection And Ranging
3158	RadB	Rad51/Dmc1 homologous protein
3159	RADb	Routing Assets Data Base
3160	RADC	Region Air Defence Commander
3161	RAE	UK Royal Aircraft Establishment (-1991)
3162	RAGBRAI	Register's Annual Great Bicycle Ride Across Iowa
3163	RAM	Royal Air Maroc
3164	Ramark	RAdar MARKer
3165	RAOC	Rear Area Operation Centre
3166	RARDE	UK Royal Armament Research and Development Establishment (1962-1991)
3167	RARE	Rapid Acquisition with Relaxation Enhancement (MRI technique)
3168	RATELO	Radiotelephone Operator
3169	Rb	Rubidium
3170	RB	Running Back (football)
3171	RBI	Runs Batted In
3172	RC	see entry
3173	RCAF	Royal Canadian Air Force
3174	RCC	Rescue Co-ordination Centre
3175	RCCO	Royal Canadian College of Organists
3176	RCHA	Royal Canadian Horse Artillery (regiment)
3177	RCMP	Royal Canadian Mounted Police
3178	RD	Radio Disney
3179	RDD	Radiological Dispersion Device
3180	RDM	Remotely Delivered/Deliverable Mine
3181	RDT	Remote Digital Terminal
3182	RDV	Remote Detection Vehicle
3183	Re	Rhenium
3184	RE	Royal Engineers
3185	REACT	Remote Electronically Activated Control Technology
3186	REAM	Retired Educators Association of Minnesota
3187	RECCE	Reconnaissance
3188	REEF	Reef Environmental Education Foundation
3189	REM	Rapid Eye Movement (sleep phase),Rosicrucian Egyptian Museum
3190	REME	Royal Electrical and Mechanical Engineers
3191	RERC	Rehabilitation Engineering Research Center
3192	RESNA	Rehabilitation Engineering and Assistive Technology Society of North America
3193	REU	Réunion (ISO 3166 trigram)
3194	Rf	Rutherfordium
3195	RFD	Request for Documentation
3196	RFE	Request for Evaluation
3197	RFEF	Real Federación Española de Fútbol (Spanish for Royal Spanish Football Federation)
3198	RFF	Right of First Refusal (legal term)
3199	RFID	Radio Frequency IDentification
3200	RFL	Rugby Football League
3201	RFP	Request for Proposal
3202	RFQ	Request for Quotation
3203	RFT	Request for Tender
3204	RFU	Rugby Football Union
3205	RG	Republican Guard
3206	Rg	Roentgenium
3207	RGB	Red Green Blue (colour model)
3208	RGBI	Red Green Blue Intensity (ditto)
3209	Rh	Rhodium
3210	RH	Southern Rhodesia (ISO 3166 digram; obsolete 1980)
3211	RHIC	Relativistic Heavy Ion Collider
3212	RHLI	Royal Hamilton Light Infantry (Canadian militia regiment)
3213	RHO	Southern Rhodesia (ISO 3166 trigram; obsolete 1980)
3214	RHU	Replacement Holding Unit
3215	RI	Rhode Island (postal symbol)
3216	RIAA	Recording Industry Association of America
3217	RIBA	Royal Institute of British Architects
3218	RIFA	Red imported fire ant
3219	RILA	Retail Industry Leaders Association
3220	RIMVS	Retinal Imaging Machine Vision System
3221	RINO	Republican In Name Only[1]
3222	RIP	Relief In Place,requiesca[n]t in pace (Latin for 'may he/she/they rest in peace')
3223	RISC	Reduced Instruction Set Computer
3224	RJD	Reduced Julian Day
3225	RKBA	Right to Keep and Bear Arms (Second Amendment to the United States Constitution)
3226	RKO	Radio-Keith-Orpheum Pictures
3227	RLP	Recognised [Operating/Operational] Land Picture
3228	RLS	Restless Leg Syndrome
3229	RLY	Rally Point
3230	RM	see separate disambiguation page
3231	RMC	Robert Menzies College
3232	RMDA	Records Management and Declassification Agency
3233	RMP	Recognised [Operating/Operational] Maritime Picture
3234	RN	Radio Netherlands
3235	Rn	Radon
3236	RNA	RiboNucleic Acid
3237	RNAD	Royal Naval Armaments Depot (UK)
3238	RNPS	Radio Network Planning System
3239	RNZ	Radio New Zealand
3240	RNZI	Radio New Zealand International
3241	ROA	Rate Of Ascent
3242	ROE	Rules Of Engagement
3243	ROFLOL	Rolling On the Floor Laughing Out Loud
3244	ROH	Ring of Honor
3245	ROK	Republic of Korea
3246	ROP	Render Output Pipeline
3247	ROPE	Research Opportunity and Performance Evidence
3248	ROS	Reactive Oxygen Species
3249	ROU	Romania (ISO 3166 trigram)
3250	ROV	Remotely Operated Vehicle
3251	ROZ	Restricted Operations Zone
3252	RPA	Regional Plan Association
3253	RPD	Recognition-Primed Decision-making
3254	RPF	Rwandan Patriotic Front
3255	RPL	Reverse Polish Lisp
3256	rpm	revolutions per minute
3257	RPN	reverse Polish notation
3258	rps	revolutions per second
3259	RPV	Remotely Piloted Vehicle
3260	RQ	Puerto Rico (FIPS 10-4 territory code)
3261	RRB	Railroad Retirement Board
3262	RRN	Recurrence Rate Number
3263	RRP	Recurrent Respiratory Papillomatosis
3264	RRS	Racing Rules of Sailing
3265	RRSP	Registered Retirement Savings Plan (Canada; roughly equivalent to the IRA in the U.S.)
3266	RS	Russia (FIPS 10-4 country code)
3267	RSI	Repetitive Strain Injury
3268	RSJ	Rolled Steel Joist (construction)
3269	RSN	Real Soon Now (coined by author Jerry Pournelle)
3270	RSPB	(UK) Royal Society for the Protection of Birds
3271	RSPCA	Royal Society for the Prevention of Cruelty to Animals
3272	RSR	Required Supply Rate
3273	RSRE	UK Royal Signals and Radar Establishment (1976-1991)
3274	RSRI	Red Sands Research Institute
3275	RSS	Really Simple Syndication
3276	RTA	Road traffic accident (British)
3277	RTBF	Radio-Télévision belge de la Communauté française
3278	RTF	Rich Text Format
3279	RTFM	the Fucking/Fine Manual
3280	RTG	Radio-isotope Thermoelectric Generator also used for Rubber Tyred Gantry crane
3281	RTI	Run-Time Infrastructure (Simulation)
3282	RTL	see entry
3283	RTP	Real-time Transport Protocol
3284	RTS	see entry
3285	RTT	Round Trip Timing
3286	RU	Russia (ISO 3166 digram)
3287	Ru	Ruthenium
3288	RUC	Royal Ulster Constabulary
3289	RUS	Russia (ISO 3166 trigram)
3290	RUSI	Royal United Services Institute for Defence Studies
3291	RW	Rwanda (ISO 3166 and FIPS 10-4 country code digram)
3292	RWA	Rwanda (ISO 3166 trigram)
3293	RWH	Rain Water Harvesting
3294	RWR	Radar Warning Receiver
3295	RWS	Remote Weapon Station
3296	Rx	Medical prescription (possibly from Latin 'recipere','to take': see entry)
3297	RX	Receive
3298	SARS	Severe Acute Respiratory Syndrome
3299	SBNO	Standing but not operating (in reference to amusement parks)
3300	SCOTUS	Supreme Court of the United States
3301	SCROTUS	So-called Ruler of the United States
3302	SDHC	Secure Digital High Capacity
3303	SDXC	Secure Digital eXtended Capacity
3304	SG	Senegal (FIPS 10-4 country code), Singapore (ISO 3166 digram), Snow Grains (METAR Code), Study Group
3305	SGOTUS	Second Gentleman of the United States
3306	SHO	Showtime (see also sho.com)
3307	SIRI	Service Interface for Real Time Information
3308	Siri	Speech Interpretation and Recognition Interface (Apple iOS software)
3309	SLOTUS	Second Lady of the United States (the vice president's wife)
3310	SoCon	Southern Conference (U.S. college sports)
3311	SSC	Safe,Sane,Consensual (SM phrase),Secondary Somatosensory Cortex,Smaller-Scale Contingency,U.S. Army Soldiers System Center (Natick,Massachusetts),Superconducting Super Collider,SSCCATAGAPP — Singles,Seniors,Childless Couples,And Teens And Gays Against Parasitic Parents (fictional organization from The Simpsons)
3312	SSD	South Sudan (ISO 3166 trigram)
3313	SSDC	U.S. Space and Strategic Defense Command
3314	STB	Surface Transportation Board[2]
3315	SWAC	Southwestern Athletic Conference
3316	SWAN	System for Wearable Audio Navigation
3317	SWAT	Special Weapons And Tactics
3318	SWF	Single White Female
3319	Ta	Tantalum
3320	TAACOM	U.S. Theater Army Area Command
3321	TAADCOORD	Theatre Army Air Defence Co-ordinator
3322	TAAR	Trace Amine-Associated Receptor
3323	TAC	U.S. Tactical Air Command (1946-1992)
3324	TACAN	Tactical Air Navigation
3325	TACCO	Tactical Coordinator
3326	TACCSF	U.S. Theater Aerospace Command & Control Simulation Facility
3327	TACDAR	Tactical Detection And Reporting
3328	TACSOP	Tactical SOP (Standing Operating Procedure)
3329	TADIL	Tactical Digital Information Link
3330	TAI	Target[ed] Area of Interest
3331	TAJ	Tom and Jerry
3332	TAJT	Tom and Jerry Tales
3333	TALES	Technical Advice and Lexicon for Enabling Simulation
3334	TANJ	There Ain't No Justice (used as expletive in the Ringworld novels)
3335	TANP	Terrain-Aware Network Planner
3336	TANSTAAFL	There Ain't No Such Thing As A Free Lunch (coined by author Robert A. Heinlein in his The Moon Is a Harsh Mistress)
3337	TAPPS	Texas Association of Private and Parochial Schools
3338	TARDIS	Time And Relative Dimension In Space (from Doctor Who)
3339	TAS	Tasmania (postal symbol)
3340	TASER	Thomas A. Swift's Electric Rifle
3341	TASM	Tactical Air-to-Surface Missile
3342	TAT	Tourism Authority of Thailand
3343	TATP	TriAcetone TriPeroxide
3344	TATT	Tired All The Time (medical diagnosis in-joke)
3345	Tb	Terbium
3346	TB	Tuberculosis
3347	TBA	to be announced
3348	TBBPA	TetraBromoBisPhenol-A
3349	TBD	to be done, or: to be documented, or: to be determined, or: to be decided
3350	TBF	to be fair
3351	TBH	To Be Honest
3352	TBL	Turkish Basketball League
3353	TBS	Turner Broadcasting System
3354	TBT	Tributyltin
3355	Tc	Technetium
3356	TCAA	Top Counter-Assault Agents
3357	TCAS	Traffic Collision Avoidance System
3358	TCCCS	Tactical Command,Control and Communication System
3359	TCD	Chad (ISO 3166 trigram)
3360	TCHD	Truck Cargo Heavy Duty
3361	TCL	Tool Command Language
3362	TCM	Turner Classic Movies
3363	TCU	Texas Christian University
3364	TCW	Tasty Coma Wife
3365	TCWMS	Tele-Center Workforce Management System
3366	TDA	The Disney Afternoon
3367	TDL	Tactical Data Link
3368	TDM	Time-Division Multiplexing
3369	TDMA	Time Division Multiple Access
3370	TDP	Technology Demonstration Programme
3371	TDRS	Tracking Data and Relay Satellite
3372	Te	Tellurium
3373	TEAL	Tasman Empire Airways Limited
3374	Team	Together everyone achieves more
3375	TEAMS	The East African Marine System (fiber optic cable)
3376	TED	Technology Entertainment Design prize
3377	TENCAP	Tactical Exploitation of National Capabilities
3378	TERS	Tactical Event Reporting System
3379	TES	Tactical Event System
3380	TEST	Thesaurus of Engineering and Scientific Terms
3381	TEU	Twenty-foot equivalent unit (cargo capacity)
3382	TeVeS	Tensor Vector Scalar theory
3383	TFMPP	Trifluorophenylmethylpiperazine
3384	TFR	Total Fertility Rate
3385	TFT	Thin-Film Transistor
3386	Tg	Teragram
3387	TG	Togo (ISO 3166 digram)
3388	TGO	Togo (ISO 3166 trigram)
3389	Th	Thorium
3390	THA	Thailand (ISO 3166 trigram)
3391	THAAD	Terminal High Altitude Area Defence
3392	THEGENTRY	The High-End Group of Earth's New Technologies Research Yield
3393	THEL	Tactical High Energy Laser ACTD
3394	THG	Tetrahydrogestrinone
3395	TIA	Total Information Awareness initiative
3396	TIA	Transient Ischemic Attack
3397	TIALD	Thermal Imaging and Airborne Laser Designation
3398	TIBS	Tactical Information Broadcast System
3399	TIC	Troops In Contact
3400	TIGERS	Topologically Integrated Geographic Encoding and Referencing System
3401	TINC	There Is No Cabal
3402	TIP	Thermal Identification Panel
3403	tits	Toes in the Sand
3404	TJD	Truncated Julian Day
3405	TJK	Tajikistan (ISO 3166 trigram)
3406	TKL	Tokelau (ISO 3166 trigram)
3407	TKM	Turkmenistan (ISO 3166 trigram)
3408	Tl	Thallium
3409	TLA	Three-Letter Abbreviation/Acronym
3410	TLAM	Tomahawk Land Attack Missile
3411	TLATOJL	The Life and Times of Juniper Lee
3412	TLPM	T1 Line Performance Monitor
3413	Tm	Terametre
3414	TMAP	Texas Medication Algorithm Project
3415	TMC	The Movie Channel
3416	TMD	Theatre Missile Defence
3417	TMDK	The Mighty Don't Kneel (Australian professional wrestling stable also active in Japan)
3418	TMI	Too Much Information
3419	TMJ	TemporoMandibular Joint (syndrome)
3420	TMNT	Teenage Mutant Ninja Turtles
3421	TMPG	Transparent Multi-Platform Gateway
3422	TMR	Twin Main Rotors (helicopter type)
3423	TMS	Transcranial Magnetic Stimulation
3424	TMT	Thirty Meter Telescope
3425	TMTOWTDI	There's Than One Way To Do It (from Perl)
3426	TNA	Total Nonstop Action Wrestling
3427	TNO	Trans-Neptunian Object
3428	TOBS	Time of OBServation
3429	TOC	Table Of Contents, Tactical Operations Centre, Temporo-Occipital transition Cortex, Top of Concrete
3430	TOG	Togo (IOC and FIFA trigram,but not ISO 3166)
3431	TOGS	Thermal Observation Gunnery Sight
3432	TOMS	Total Ozone Mapping Spectrometer (satellite instrument)
3433	TON	Tonga (ISO 3166 trigram)
3434	TOS	Tape Operating System,Terms of service,The Original Series,used to distinguish the first Star Trek TV series from other parts of the media franchise,Tramiel Operating System
3435	TOT	Time On Target
3436	TOW	Tube-launched,Optically tracked,Wire-guided (anti-tank missile)
3437	TP	East Timor (ISO 3166 digram; obsolete 2002),São Tomé and Príncipe (FIPS 10-4 country code),Training Practice,Trident Ploughshares
3438	TPE	Chinese Taipei (IOC and FIFA trigram for the country also known as Taiwan)
3439	TPI	The point is
3440	TPO	Thrombopoietin
3441	TPS	The Pennington School
3442	TPTB	The Powers That Be (often used to refer to the people responsible for the content of TV series or movies)
3443	TQ	Top Qualifier (similar to Pole Position in car racing)
3444	TRA	Technology iness Assessment
3445	TRAC	(U.S. Army) TRADOC Analysis Center
3446	TRACON	Terminal Radar Approach Control
3447	TRADOC	(U.S. Army) Training and Doctrine Command
3448	TRANSCOM	U.S. Transportation Command
3449	TRAP	Tactical Receive equipment and related Applications
3450	TRASANA	TRADOC Systems Analysis Agency
3451	TRD	Towed Radar Decoy
3452	TRIGAT	Third Generation Antitank (missile)
3453	TRL	Technology readiness level
3454	Trp	Troop
3455	TRU	Transuranic
3456	TRUEX	Training in Urban Environment Exercise
3457	TRW	Thompson Ramo Wooldridge Inc.
3458	Ts	Terasecond
3459	TS	Terasiemens,Thunderstorm (METAR code),Tunisia (FIPS 10-4 country code),TinySex,Transsexual, Tough Sh*t
3460	TSA	Theatre Storage Area,Time Slot Allocation,Transportation Security Administration,The Salvation Army
3461	TSEC	Transmission Security Encryption Code
3462	TSL	Transportation Security Laboratory
3463	TSN	The Sporting News (historic name of the periodical now known as Sporting News),The Sports Network
3464	TSO	The Stationery Office (was HMSO until 1996),(U.S.) TRICARE Support Office,Trans-Siberian Orchestra (band)
3465	TSOP	Tactical Standing Operation Procedure,The Sound of Philadelphia (classic 1970s R&B instrumental)
3466	TSR	Terminate and Stay Resident
3467	TSSIA	The Subject Says It All
3468	TT	Teratesla,Terrestrial Time,Tourist Trophy (Motorcycle sport),Trinidad and Tobago (ISO 3166 digram)
3469	TTCT	Torrance Tests of Creative Thinking
3470	TTFN	Ta Ta For Now
3471	TTL	Tax,Title,License,Through-the-lens (photography),Time 'till live,Time to live,Transistor-transistor logic
3472	TTO	Trinidad and Tobago (ISO 3166 trigram)
3473	TTP	Tactics,Techniques,and Procedures,Thrombotic thrombocytopenic purpura,Trailer Transfer Point
3474	TTTEAF	Thomas the Tank Engine and Friends
3475	TTY	TeleTYpewriter (Printer)
3476	TTYL	To You Later (Internet slang)
3477	TTZ	Tetrazolium
3478	TU	Technische Universität (German for 'Technical University'),Thammasat University (Thailand),Turkey (FIPS 10-4 country code)
3479	TUC	Trades Union Congress
3480	TUG	TeX Users Group
3481	TUI	Text-based user interface (cf. CLI),among other uses
3482	TUM	Technische Universität München (Germany)
3483	TUN	Tunisia (ISO 3166 trigram)
3484	TUNS	Technical University of Nova Scotia
3485	TUR	Turkey (ISO 3166 trigram)
3486	TUSK	Tank Urban Survival Kit
3487	TUV	Tuvalu (ISO 3166 trigram)
3488	TV	Television,Teravolt,Transvestite,Tuvalu (ISO 3166 and FIPS 10-4 country code digram)
3489	Tv	Time value,a designation seen on some camera dials for shutter priority mode
3490	TVA	Tennessee Valley Authority
3491	TVG	Television Games (Network),Tick,Very Good,Often used by School Teachers when marking homework etc. (Tick VG)[1][2]
3492	TVR	TreVor (Wilkinson) Racing
3493	TVS	Tornado vortex signature
3494	TW	Republic of China (Taiwan) (ISO 3166 and FIPS 10-4 country code digram),Terawatt
3495	TWAIN	Technology Without An Interesting Name
3496	TWE	Trans World Entertainment
3497	TWI	The Welding Institute
3498	TWIP	Take What Insurance Pays,When a surgeon agrees to accept a lower payment than he ordinarily would for a procedure and not charge the patient the difference
3499	TWN	Republic of China (Taiwan) (ISO 3166 trigram)
3500	TWP	Technical Working Paper
3501	TWS	Thermal Weapon Sight,Track While Scan
3502	TX	Texas (postal symbol),Transmit,Turkmenistan (FIPS 10-4 country code)
3503	TXV	Thermostatic Expansion Valve
3504	TYT	Take Your Time,Internet chat abbreviation
3505	TZ	Tanzania (ISO 3166 and FIPS 10-4 country code digram)
3506	TZA	Tanzania (ISO 3166 trigram)
3507	TZC	Tetrazolium chloride
3508	U	Uranium
3509	UA	Unit of Action
3510	UAAP	University Athletic Association of the Philippines
3511	UAB	University of Alabama at Birmingham
3512	UAP	Unidentified Areal Phenomana
3513	UAV	Unmanned Aerial Vehicle,Unprotected Anal and Vaginal sex,UB[edit]
3514	UBC	United Baptist Church,University of British Columbia
3515	UBI	Universal Basic Income
3516	UBIGEO	Ubicación Geografica (Spanish for Geographical Location)
3517	UBS	Unbundled Bitstream Services,United Bank of Switzerland,United Banque Suisse
3518	UCBSA	United Cricket Board of South Africa
3519	UCF	University of Central Florida
3520	UCLA	University of California at Los Angeles
3521	UCLES	University of Cambridge Local Examinations Syndicate
3522	UCR	University of California at Riverside
3523	UCR	University of Costa Rica
3524	UCS	Union of Concerned Scientists
3525	UCSB	University of California at Santa Barbara
3526	UCSD	University of California at San Diego
3527	UDAS	Uppsala-DLR Asteroid Survey
3528	UDDI	Universal Description,Discovery and Integration
3529	UDTS	Uppsala-DLR Trojan Survey
3530	UE	Unit of Employment
3531	UEFA	Union of European Football Associations
3532	UESAC	Uppsala-ESO Survey of Asteroids and Comets
3533	UFC	Ultimate Fighting Championship
3534	UFO	Unidentified Flying Object, or: United Farmers of Ontario
3535	UGV	Unmanned Ground Vehicle
3536	UHF	Ultra High Frequency
3537	UHMW	Ultra-High Molecular Weight
3538	UHRB	Ultra-High Resolution Building (simulation)
3539	UIC	University of Illinois at Chicago
3540	UID	User ID
3541	UIUC	University of Illinois at Urbana-Champaign
3542	UJTL	Universal Joint Task List
3543	UKIP	United Kingdom Independence Party
3544	UKR	Ukraine (ISO 3166 trigram)
3545	UL	Underwriters Laboratories
3546	ULF	Ultra Low Frequency
3547	UM	U.S. Minor Outlying Islands (postal symbol; ISO 3166 digram)
3548	UMCP	Unit Maintenance Collection Point
3549	UMES	University of Maryland Eastern Shore
3550	UMI	U.S. Minor Outlying Islands (ISO 3166 trigram)
3551	UMIST	University of Manchester Institute of Science and Technology
3552	UMTS	Universal Mobile Telecommunications System
3553	UN	United Nations
3554	UNABOM	University and airline bomber (FBI case name)
3555	UNAIDS	Joint United Nations Programme on HIV/AIDS
3556	UNAMSIL	United Nations Mission in Sierra Leone
3557	UNCF	United Negro College Fund
3558	UNCLOS	United Nations Convention on the Law of the Sea
3559	UNCSGN	United Nations Conference on the Standardization of Geographical Names
3560	UNCTAD	United Nations Conference on Trade and Development
3561	UNDCP	United Nations Drug Control Programme
3562	UNDE	Union of National Defence Employees (Canada)
3563	UNDP	United Nations Development Programme
3564	UNEP	United Nations Environment Programme
3565	UNFCCC	United Nations Framework Convention on Climate Change
3566	UNFICYP	United Nations Peacekeeping Force in Cyprus
3567	UNGEGN	United Nations Group of Experts on Geographical Names
3568	UNHCR	United Nations High Commission (er) for Refugees
3569	UNICEF	United Nations Children's Fund (originally the United Nations International Children's Emergency Fund)
3570	UNICRI	United Nations Interregional Crime and Justice Research Institute
3571	UNIDO	United Nations Industrial Development Organization
3572	UNIFEM	United Nations Development Fund for Women (from the French Fonds de développement des Nations unies pour la femme)
3573	UNLV	University of Nevada,Las Vegas
3574	UNMIK	United Nations Interim Administration Mission in Kosovo
3575	UNOSOM	United Nations Operations in Somalia
3576	UNPROFOR	United Nations Protection Force (in former Yugoslavia)
3577	UNRISD	United Nations Research Institute for Social Development
3578	UNSM	Union of Nova Scotian Municipalities
3579	UNTAC	United Nations Transitional Authority in Cambodia
3580	UNTAET	United Nations Transitional Administration in East Timor
3581	UNU	United Nations University
3582	UPdM	Università Popolare della Multimedialità
3583	UPF	Universitat Pompeu Fabra (Catalan for: 'Pompeu Fabra University')
3584	UPI	United Press International
3585	UPN	United Paramount Network
3586	UPU	Universal Postal Union
3587	UR	Soviet Union (NATO country code,obsolete 1992)
3588	URBSFA	Union royale belge des sociétés de football association (French for Royal Belgian Football Association)
3589	URD	User Requirements Document
3590	URI	University of Rhode Island
3591	URU	Uruguay (IOC and FIFA trigram, but not ISO 3166)
3592	URY	Uruguay (ISO 3166 trigram)
3593	US	United States (also ISO 3166 and FIPS 10-4 country code digram)
3594	USA	United States of America (also ISO 3166 trigram), United States Army
3595	USAADAC	U.S. Army Air Defense Artillery Center,Fort Bliss,Texas
3596	USAARMC	U.S. Army ARMor Center,Fort Knox,Kentucky
3597	USAAVNC	U.S. Army AViatioN Center,Fort Rucker,Alabama
3598	USAFSPC	U.S. Air Force Space Command
3599	USAIC	U.S. Army Infantry Center,U.S. Army Intelligence Center
3600	USAID	United States Agency for International Development
3601	USAP	Union Sportive des Arlequins Perpignanais,United States Antarctic Program
3602	USAPATRIOT	Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism
3603	USAREUR	United States Army Europe
3604	USB	Universal Serial Bus
3605	USC	United States Code,University of South Carolina,University of Southern California
3606	USCG	United States Coast Guard
3607	USCINCSPACE	United States Commander in Chief,Space Command
3608	USDA	United States Department of Agriculture
3609	USDI	United States Department of the Interior
3610	USDOE	United States Department of Energy
3611	USDRE	(U.S.) Under-Secretary of Defense for Research and Engineering (1978-1986)
3612	USEC	United States Enrichment Corporation
3613	USFL	United States Football League
3614	USFWS	United States Fish and Wildlife Service
3615	USGS	United States Geological Survey
3616	USIA	United States Information Agency
3617	USJFCOM	United States Joint Forces Command
3618	USL	United Soccer League,a third-level U.S. league. Not to be confused with an earlier league of the same name.,United Soccer Leagues,the organization that operates the above league,plus several other lower-level leagues,University of Southwestern Louisiana,a former name for the school now known as the University of Louisiana at Lafayette
3619	USMC	United States Marine Corps
3620	USMNT	United States men's national (soccer) team
3621	USN	United States Navy
3622	USNA	United States National Arboretum,United States Naval Academy
3623	USNB	United States Naval Base
3624	USNG	United States National Grid
3625	USNH	United States Naval Hospital
3626	USNI	United States Naval Institute
3627	USNO	U.S. Naval Observatory
3628	USNOFS	United States Naval Observatory Flagstaff Station
3629	USNP	United States Newspaper Program
3630	USNR	United States Navy Reserve
3631	USNS	United States Naval Ship
3632	USNY	University of the State of New York (usually pronounced 'use-knee')
3633	USNZ	University Sport New Zealand
3634	USPS	United States Postal Service
3635	USPTO	United States Patent and Trademark Office
3636	USR	User
3637	USS	United States ship (sometimes meaningless; see Star Trek)
3638	USSPACECOM	United States Space Command
3639	USSR	Union of Soviet Socialist Republics
3640	UST	Underground Storage Tank
3641	USTRANSCOM	United States Transportation Command
3642	USWNT	United States women's national (soccer) team
3643	UT	Universal Time
3644	UTEP	University of Texas at El Paso (pronounced you-tep)
3645	UTM	Universal Transverse Mercator (geographical co-ordinate system)
3646	UUA	Unitarian Universalist Association
3647	UUID	Universally Unique Identifier (see also GUID)
3648	UUV	Unmanned Underwater Vehicle
3649	UW	University of Washington
3650	UWO	University of Western Ontario
3651	UWT	Under Water Telephone
3652	UWTG	Under Water Tug
3653	UWW	United World Wrestling
3654	UXO	Unexploded Ordnance
3655	UY	Uruguay (ISO 3166 and FIPS 10-4 country code digram)
3656	UZ	Uzbekistan (ISO 3166 and FIPS 10-4 country code digram)
3657	UZB	Uzbekistan (ISO 3166 trigram)
3658	VACIS	Vehicle And Container Inspection System
3659	VACIS	Victorian Ambulance Clinical Information System
3660	VANOS	Variable Nockenwelle System
3661	VAO	Vienna Art Orchestra
3662	VAT	Vatican City-State (ISO 3166 trigram)
3663	VBA	Visual Basic for Applications
3664	vCJD	Variant Creutzfeldt-Jakob Disease
3665	VCNO	(U.S.) Vice Chief of Naval Operations
3666	VCofS	Vice Chief of Staff
3667	VCR	Video cassette recorder
3668	VCT	Saint Vincent and the Grenadines (ISO 3166 trigram)
3669	VDFS	VisualSVN Distributed File System (VDFS)
3670	VE	Venezuela (FIPS 10-4 country code; ISO 3166 digram)
3671	VEEGA	Venus Earth Earth Gravity Assist manœuvre
3672	VEN	Venezuela (ISO 3166 trigram)
3673	VERITAS	Very Energetic Radiation Imaging Telescope Array System
3674	VfD	s for deletion (used in Wikipedia)
3675	VFM	Value For Money
3676	VFMO	Very Fast Moving Object (astronomy)
3677	VFT	Virtual Function Table
3678	VFW	Veterans of Foreign Wars
3679	VG	British Virgin Islands (ISO 3166 digram)
3680	VGB	British Virgin Islands (ISO 3166 trigram)
3681	VH1	Video Hits One
3682	VHF	Very High Frequency
3683	VIA	Versatile Interface Adapter
3684	VIDS	Visual Information Display System
3685	VII	7 (in Roman numerals)
3686	VIII	8 (in Roman numerals)
3687	VIN	Vehicle Identification Number (ISO 3779)
3688	VIP	Very Important Person
3689	VISCII	VIetnamese Standard Code for Information Interchange
3690	VIT	Vellore Institute of Technology
3691	VIVO	Video In Video Out
3692	VJ	Video Jockey
3693	VLAD	Vertical Line Array DIFAR
3694	VLBA	Very Long Baseline Array
3695	VLF	Very Low Frequency
3696	VLIW	Very Long Instruction Word
3697	VLPFC	VentroLateral PreFrontal Cortex
3698	VLPMC	VentroLateral PreMotor Cortex
3699	VLSI	Very-large-scale integration
3700	VM	Vietnam (FIPS 10-4 country code)
3701	VMF	Marine Fighting Squadron of the United States Marine Corps
3702	VMF	Variable Message Format
3703	VMN	VentroMedial Nucleus (neurophysiology)
3704	VN	Vietnam (ISO 3166 digram)
3705	VNIR	Visible and Near InfraRed
3706	VNM	Vietnam (ISO 3166 trigram)
3707	VNS	see entry
3708	VOA	Voice of America
3709	VOIP	Voice Over Internet Protocol
3710	VOLT	Visual OpenType Layout Tool
3711	VON	Victorian Order of Nurses
3712	VOR	Voice of Russia
3713	VOX	Voice Operated oscillator
3714	VPOTUS	Vice President of the United States
3715	VPN	Virtual Private Network
3716	VR	Virtual Reality
3717	VRSG	Virtual Reality Scene Generator
3718	VSHORAD	Very Short Range Air Defence
3719	VSO	Voluntary Services Overseas
3720	VSR	Very Special Relativity
3721	VTC	Video Tele-Conference
3722	VTEC	Variable valve Timing and Electronic lift Control
3723	VUB	Vrije Universiteit Brussel (Belgian university)
3724	VUT	Vanuatu (ISO 3166 trigram)
3725	VVAF	Vietnam Veterans of America Foundation
3726	VW	Volkswagen
3727	VZ	Verizon Communications (NYSE code)
3728	W3C	World Wide Web Consortium
3729	WAAC	Women's Army Auxiliary Corps (Britain) (World War I UK)
3730	WAAF	Women's Auxiliary Air Force (World War II UK)
3731	WACC	Weighted Average Cost of Capital (accounting)
3732	WACS	What-A-Cartoon! Show
3733	WAD	Weapons Alert Designator
3734	WAGGGS	World Association of Girl Guides and Girl Scouts
3735	WAL	see entry
3736	WAN	Wide area network
3737	WAP	Wireless Application Protocol
3738	WAPIMA	What a pain in my ass
3739	WAR	With All Respect
3740	WAsP	Short form of WAAAAP (Wind Atlas Analysis and Application Program)
3741	WAYP	White And Yellow Pages
3742	Wb	Weber
3743	WBC	World Boxing Council
3744	WBE	Work Breakdown Element
3745	WBO	World Boxing Organization
3746	WCBO	World Chess Boxing Organisation
3747	WCBP	World Center for Birds of Prey
3748	WCL	World Confederation of Labour
3749	WCW	World Championship Wrestling
3750	WDIN	Wildlife Disease Information Node
3751	WDWR	Walt Disney World Resort
3752	WEBS	Weapon Effectiveness Battle Simulation
3753	WEC	World Extreme Cagefighting
3754	WEEE	Waste Electrical and Electronic Equipment
3755	WEF	World Economic Forum
3756	WEM	West Edmonton Mall
3757	WEU	Western European Union
3758	WEZ	Weapon Engagement Zone
3759	WF	Wallis and Futuna Islands (ISO 3166 digram)
3760	WFC	Women's Forage Corps (World War II UK)
3761	WFD	Weapon of Focused Destruction
3762	WFF	Wallops Flight Facility
3763	WFI	Water for Injection
3764	WFH	Working from home
3765	WFP	World Food Program
3766	WFZ	Weapons Free Zone
3767	WH	Wehrmacht Heer (German World War II army vehicle licence plate code)
3768	WHAM	Wisconsin Hydrogen-Alpha Mapping (telescope)
3769	WHI	Women's Health Initiative
3770	WHIP	Walks plus hits per inning pitched
3771	WHO	World Health Organisation
3772	WHS	(U.S.) Washington Headquarters Services
3773	WIIFM	What's in it for me?
3774	WIP	Work In Progress
3775	WIPO	World Intellectual Property Organization
3776	WIPP	[Nuclear] Waste Isolation Pilot Plant
3777	WIYN	Wisconsin Indiana Yale NOAO telescope consortium
3778	WKYP	Will Keep You Posted
3779	WL	Wehrmacht Luftwaffe (German World War II air force vehicle licence plate code)
3780	WLB	Women's Land Brigade (World War II Canada)
3781	WLF	Wallis and Futuna Islands (ISO 3166 trigram)
3782	WLOG	Without Loss Of Generality (see WOLOG)
3783	WM	Wehrmacht Marine (German World War II navy vehicle licence plate code)
3784	WMANUS	West Midlands Area National Union of Students
3785	WMD	World Movement for Democracy
3786	WMI	Wildlife Management Institute
3787	WMO	World Meteorological Organization
3788	WNA	World Nuclear Association
3789	WNF	Will Not Fix
3790	WNIT	Women's National Invitation Tournament
3791	WNW	West North-West
3792	WO	Warrant Officer
3793	WOF	Width of Fabric
3794	WOFT	Waste Of Fucking Time
3795	WOFTAM	Waste Of Fucking Time And Money
3796	WOI	Wheels Of Italy
3797	WOM	Write Only Memory
3798	WOS	Wilson Ornithological Society
3799	WOT	Waste Of Time
3800	WP	White Phosphorus (ammunition)
3801	WPB	War Production Board during World War II
3802	WPE	World Pork Expo
3803	WPK	Wider Peacekeeping
3804	WR	Wide Receiver (football)
3805	WRAC	Women's Royal Army Corps (World War II UK)
3806	WRAIR	Walter Reed Army Institute of Research
3807	WRBWWRM	We Best What We Most
3808	WRC	World Rally Championship
3809	WRC	World Religions Conference
3810	WRNG	Warning
3811	WRS	Worldwide Reference System
3812	WRT	NHS Workforce Review Team
3813	WRT	The Linksys routers whose model name start with 'WRT'
3814	WRT	Third party firmware for the Linksys WRT routers and compatible models from other vendors.
3815	WRT	Web Runtime (WRT) is a portable application framework developed by Nokia that allows the creation of widgets on the S60 Platform.
3816	WRT	Wireless Receiver/Transmitter ( computer networks/IT )
3817	WRT	Wireless Ronin Technologies (digital signage)
3818	WRT	World Rally Team
3819	WRT	Writer Response Theory
3820	WSC	Weapon System Catalogue
3821	WSDL	Web Services Description Language
3822	WSJ	(The) Wall Street Journal
3823	WSROC	Western Sydney Regional Organisation of Councils
3824	WSSM	Winchester Super Short Magnum (family of rifle cartridges)
3825	WSTC	Women Signallers Territorial Corps (World War II UK)
3826	WSW	West South-West
3827	WTC	World Trade Center
3828	WTF	What the fuck?; also What a Terrible Failure (android)
3829	WTFH	What The Fucking Hell
3830	WTH	What the Hell
3831	WTO	World Trade Organization
3832	WUBU2	What you been up to
3833	WV	West Virginia (postal symbol)
3834	WVA	World Veterinary Association
3835	WVIAC	West Virginia Intercollegiate Athletic Conference
3836	WVR	Women's Volunteer Reserve (World War II UK)
3837	WVSC	Women's Volunteer Service Corps (World War II Canada)
3838	WVU	West Virginia University
3839	WW	see entry
3840	WWE	World Wrestling Entertainment
3841	WWI	World War I
3842	WWII	World War II
3843	WWIII	World War III
3844	WWJD	What would Jesus do?
3845	WWS	Wheaton Warrenville South High School
3846	WWWF	World Wide Wrestling Federation
3847	WXO	Weather [Executive] Officer
3848	WY	Wyoming (postal symbol)
3849	WZ	Swaziland (FIPS 10-4 country code)
3850	XBML	eXtended Business Modelling Language
3851	XC	Ninety (in Roman numerals)
3852	XCBL	XML Common Business Library
3853	XD	Used in chatrooms or email for smiley face. X is the eyes; squinted D is the mouth; XD.
3854	Xe	Xenon
3855	XFA	XML Forms Architecture
3856	XFC	Xtreme Fighting Championships
3857	XFD	Fighter aircraft made by Douglas
3858	Xfe	X File Explorer
3859	XFF	X-Forwarded-For
3860	XFG	Exfoliation glaucoma
3861	XFR	Automobile made by Jaguar
3862	XFT	X FreeType interface library
3863	XG	Automobile made by Hyundai
3864	XGA	Extended Graphics Array
3865	XGP	Extreme Game Player
3866	XHTML	eXtensible Hypertext Markup Language
3867	XI	Eleven (in Roman numerals)
3868	XII	Twelve (in Roman numerals)
3869	XIII	Thirteen (in Roman numerals)
3870	XIV	Fourteen (in Roman numerals)
3871	XIX	Nineteen (in Roman numerals)
3872	XJS	Automobile made by Jaguar
3873	XKB	X keyboard extension
3874	XKE	Automobile made by Jaguar
3875	XKR	Automobile made by Jaguar
3876	XML	eXtensible Markup Language
3877	XMSF	eXtensible Modelling and Simulation Framework
3878	XNA	X-No-Archive,Xeno Nucleic Acid
3879	XNC	X Northern Captain
3880	XNU	X is Not Unix
3881	XP	eXperience Point (role-playing games)
3882	XQJ	XQuery API for Java™
3883	XRAY	X-Ray
3884	XRML	eXtensible Rights Markup Language
3885	XS	Xiaolin Showdown
3886	XSL	eXtensible Style Language
3887	XTMH	eXtreme Technology Multiprocessor Hyperlanguage
3888	XUL	XML User Interface Language
3889	XV	Fifteen (in Roman numerals)
3890	XVI	Sixteen (in Roman numerals)
3891	XVII	Seventeen (in Roman numerals)
3892	XVIII	Eighteen (in Roman numerals)
3893	XWF	Xcitement Wrestling Federation
3894	XX	Twenty (in Roman numerals)
3895	Xyl	Xylobium
3896	XZN	Triple square screw driver
3897	y	Yocto-
3898	Y2K	Year Two Thousand
3899	yA	Yoctoampere
3900	Ya	Yottayear
3901	YaBPr	Yet another Brother Pat rant
3902	YABSLAG	Yet another boy singing like a girl
3903	YAC	Youth-Adult Committee
3904	YAFLA	Yet Another Five Letter Abbreviation
3905	YAP	Young Aspiring Professional
3906	YB	Youcef Benzouada (Southern Algerian name)
3907	Yb	Ytterbium
3908	yC	Yoctocoulomb
3909	YC	Yottacoulomb
3910	YDS	Yosemite Decimal System (climbing)
3911	YE	Yemen (ISO 3166 digram)
3912	YEM	Yemen (ISO 3166 trigram)
3913	yF	Yoctofarad
3914	YF	Yottafarad
3915	yg	Yoctogram
3916	Yg	Yottagram
3917	YGCO	Yamaneko Group of Comet Observers
3918	Ygo	Yu-Gi-Oh!
3919	yH	Yoctohenry
3920	YH	Yottahenry
3921	YHBT	You Have Been Trolled
3922	YHII	You Have It Inside
3923	YHS	Ya Hoor sur!
3924	Yi	Yobi
3925	Yippie	Youth International Party + suffix
3926	yJ	Yoctojoule
3927	YJ	Yottajoule
3928	yK	Yoctokelvin
3929	YK	Yottakelvin
3930	YKYFCW	You know you're from Christchurch when (post-earthquake joke)
3931	yL	Yoctolitre
3932	YL	Yottalitre
3933	ym	Yoctometre
3934	Ym	Yottametre
3935	YMMD	You Make My Day
3936	yN	Yoctonewton
3937	YN	Yottanewton
3938	YOLO	You Only Live Once
3939	YPA	Yards per Pass Attempt (football statistic)
3940	YPIO	Your Problem Is Obvious
3941	YPO	Young Presidents' Organization
3942	ys	Yoctosecond
3943	yS	Yoctosiemens
3944	Ys	Yottasecond
3945	YS	Yottasiemens
3946	YSI	Young Scots for Independence
3947	yT	Yoctotesla
3948	YTD	Year-To-Date
3949	YTM	Yield to Maturity
3950	YTS	Youth Training Scheme
3951	YTT	Yoshi Topsy-Turvy
3952	Yuppie	Young Urban Professional + suffix
3953	yV	Yoctovolt
3954	YV	Yottavolt
3955	yW	Yoctowatt
3956	YW	Yottawatt
3957	YYH	YuYu Hakusho
3958	z	Zepto
3959	Z	Zetta
3960	zA	Zeptoampere
3961	ZAF	South Africa (ISO 3166 trigram)
3962	ZAMS	Zero age main sequence
3963	ZAS	Zylinder Abschaltung System
3964	ZBT	Zero-Balance Transfer (accounting)
3965	zC	Zeptocoulomb
3966	ZC	Zettacoulomb
3967	ZCM	(n) ZENworks Configuration Management
3968	ZCMK	Zone Control Master Key
3969	ZCU	Zimbabwe Cricket Union
3970	\a	Atto-