List of acronyms: B

(Main list of acronyms)

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B – (s) Bel – Boron

B0–9

B10 – (i) Ben 10
B10: AF – (i) Ben 10: Alien Force
B10: UA – (i) Ben 10: Ultimate Alien
B2B – (i) Business-to-business electronic commerce
B2C – (i) Business-to-consumer electronic commerce
B2E – (i) Business-to-employee electronic commerce
B2M – Business to many

BA

ba – (s) Bashkir language (ISO 639-1 code)
Ba – (s) Barium
BA –
(i) Bachelor of Arts
(s) Bahrain (FIPS 10-4 country code)
Bosnia and Herzegovina (ISO 3166 diagram)
(i) British Airways
British Army
Bank of America
BAA – (i) British Airport Authority
BAC – (a) Blood alcohol content
British Aircraft Corporation
BAD – (HBO) Boxing After Dark
BADD – (a) Battlefield Awareness and Data Dissemination
BAE – (p) BAE Systems (formerly British Aerospace, BAe)
BAFTA – (a) British Academy of Film and Television Arts
BAI – (i) Battlefield Air Interdiction
bak – (s) Bashkir language (ISO 639-2 code)
BALCO – (p) Bay Area Laboratory Co-operative
bam – (s) Bambara language (ISO 639-2 code)
BAM –
(i) Business Activity Monitoring
(s) Bosnia and Herzegovina convertible mark (ISO 4217 currency code)
BAMC – (i) Brooke Army Medical Center
Banesto – (p) Banco Español de Crédito (Spanish, "Spanish Credit Bank")
BANG – (a) Bits, Atoms, Neurons, Genes
BAO – (i) Battlefield Air Operations
BAOR – (i) British Army Of the Rhine
B[a]P – (p) [[Benzopyrene|Benzo[a]pyrene]]
BAR
(s) Barbados (IOC trigram, but not FIFA or ISO 3166)
(a) British American Racing
Browning Automatic Rifle
Buy-American Restrictions
BARD – (a) Binational Agricultural Research and Development fund (between the US and Israel)
BARDA – (a) Biomedical Advanced Research and Development Authority
BART – (a) Bay Area Rapid Transit
BAS – (i) Battalion Aid Station
BASE – (a) Building, Antenna, Span, Earth (parachute from)
BASF – (i) Badische Anilin und Soda Fabrik (Baden Aniline and Soda Factory, a German chemicals company)
BASIC – (a) Beginner's All-purpose Symbolic Instruction Code (acronym was added later, originally it was simply Basic)
BAT – (a/i) Basic Aid Training
(a) British American Tobacco, London, England
(a) British Antarctic Territory (overseas territory)
BATF – (i) U.S. Bureau of Alcohol, Tobacco, and Firearms
BATS –
(a) Behavior Analysis Training System
Bradley Advanced Training System
BATTeRS – (a) Bisei Asteroid Tracking Telescope for Rapid Survey

BB

BB
(s) Barbados (ISO 3166 digram; FIPS 10-4 country code)
(i) Boys' Brigade (Christian youth organization)
Brigitte Bardot (actress)
Bumblebee
BBB
(i) Better Business Bureau
Blood–brain barrier
(p/i) BoerBurgerBeweging (Dutch, "Farmer–Citizen Movement"; Dutch political party)
BBC
(i) Breeding Bird Census
British Broadcasting Corporation
(i) Bumper to Back of Cab (trucking measurement)
BBCOR – (i) Bat-ball coefficient of restitution (standard used for non-wood bats used in US college baseball)
BBD
(s) Barbadian dollar (ISO 4217 currency code)
(a) Bowel Bladder Dysfunction
BBL
(i) Be Back Later
(i) Brazilian Butt Lift
Bird Banding Laboratory
Big Bash League
British Basketball League
BBN – (i) Bolt, Beranek and Newman
BBOL – Blessing Ball of Light
BBQ – (s) Barbecue
BBS
(i) Breeding Bird Survey (North America)
Brigade/Battalion Battle Simulation
Bulletin Board System
BBSRC – (i) U.K. Biotechnology and Biological Sciences Research Council
BBVA – (i) Banco Bilbao Vizcaya Argentaria (Spanish bank)
BBYO – B'nai B'rith Youth Organization

BC

BC
(i) Before Christ
Blind Copy (in emailers)
Boston College
(s) Botswana (FIPS 10-4 country code; from Bechuanaland)
British Columbia (postal symbol)
BCA
(i) Bachelor of Computer Application
Black Coaches & Administrators
BCC – (i) Blind Carbon Copy
BCCI
(i) Bank of Credit and Commerce International
Board of Control for Cricket in India
BCD – (i) Binary-Coded Decimal
BCE
(i) Banque centrale européenne (French, "European Central Bank")
Battlefield Co-ordination Element
BC Electric, a former name for BC Hydro
Before Common Era
BCER – (i) British Columbia Electric Railway
BCFG – (s) Patchy Fog (METAR Code)
BCIS (fratricide avoidance system) – (i) Battlefield Combat Identification System
BCLL – (a) Bibliography of Celtic Latin Literature
BCOL – (i) British Columbia Railway
BCPL – (i) Basic Combined Programming Language (progenitor of C)
BCS
(i) Bachelor of Computer Science
Bardeen, Cooper, and Schrieffer superconduction theory
Bowl Championship Series (US college football)
BCT – (i) Brigade Combat Team

BD

BD
(s) Bangladesh (ISO 3166 digram)
Bermuda (FIPS 10-4 territory code)
BDA – (i) British Dental Association
BDD
(i) Body Dysmorphic Disorder
British Defence Doctrine
Bde – (s) Brigade
BDFL – (i) Benevolent Dictator For Life
BDI – (s) Burundi (ISO 3166 trigram)
BDNF – (i) Brain-Derived Neurotrophic Factor
BDO – (i) Battle Dress Overgarment
BDOS – (a) Basic Disk Operating System; part of CP/M
BDS
(i) – Bachelor of Dental Surgery
Boycott, Divestment and Sanctions, a movement advocating various boycotts of Israel in the context of the Arab–Israeli conflict
BDSM – (i) Bondage and Discipline, Domination and Submission, Sadism and Masochism
BDT
(s) Bangladeshi taka (ISO 4217 currency code)
(i) Bureau de développement des télécommunications (Telecommunication Development Bureau, became ITU-D)
BDU – (i) Battle-Dress Uniform

BE

be – (s) Belarusian language (ISO 639-1 code)
Be – (s) Beryllium
BE – (s) Belgium (FIPS 10-4 country code; ISO 3166 digram)
BEA
(i) Banque extérieure d'Algérie
British European Airways (ancestor of British Airways)
British Electricity Authority
bel – (s) Belarusian language (ISO 639-2 code)
BEL – (s) Belgium (ISO 3166 trigram)
BEM – (i) British Empire Medal – Bug-Eyed Monster
ben – (s) Bengali language (ISO 639-2 code)
BEN – (s) Benin (ISO 3166 trigram)
BEO – (i) Banquet Event Order
BERC – (a) Business Environmental Resource Center
BER – (i) Bit Error Rate
BES
(i) Budget Estimate Submission
(s) Caribbean Netherlands (ISO 3166 trigram; from the entity's alternate name of Bonaire, Sint Eustatius and Saba)
BESS – (i) Business, Education, and Social Sciences
BET – (a/i) Black Entertainment Television
BETS – (a) Bradley Embedded Training System
BEV
(i) Battery electric vehicle
Black English Vernacular, a type of English spoken by many African Americans
Bundesamt für Eich- und Vermessungswesen (German: "Federal Office of Metrology and Surveying"), Austrian government agency

BF

BF – (s) The Bahamas (FIPS 10-4 country code) – Burkina Faso (ISO 3166 digram)
b/f – (p) before
BFA – (s) Burkina Faso (ISO 3166 trigram)
BfArM – (i) Bundesinstitut für Arzneimittel und Medizinprodukte, German governmental institute for drugs and medical devices
BFF – (i) Best Friends Forever
BFI – (a) British Film Institute
BFR – (a) Biennial flight review
BFR – (i) Brominated Flame Retardant
BFS – (s) Belfast International Airport (IATA airport code)
BFSA – (i) Blue Force Situation Awareness
BFT – (i) Blue Force Tracking
BFX – (s) Bioinformatics

BG

bg – (s) Bulgarian language (ISO 639-1 code)
BG – (s) Bangladesh (FIPS 10-4 country code) – (i) Battle Group – Body Guard – (s) Brigadier General – (s) Bulgaria (ISO 3166 digram)
BGA – (i) Ball Grid Array – Brandy and Ginger Ale (alcoholic beverage)
BGD – (s) Bangladesh (ISO 3166 trigram)
BGN – (i) U.S. Board on Geographic Names – (s) Bulgarian lev (ISO 4217 currency code)
BGR – (s) Bulgaria (ISO 3166 trigram)
BGS – (i) Bristol Grammar School – British Geological Survey
BGWG – (p) Battle Group Wargame (military simulation; "big wig")

BH

bh – (s) Bihari languages (ISO 639-1 code)
Bh – (s) Bohrium
BH
(s) Bahrain (ISO 3166 digram)
Belize (FIPS 10-4 country code)
BHD – (s) Bahraini dinar (ISO 4217 currency code)
BHR – (s) Bahrain (ISO 3166 trigram)
BHS
(i) British Home Stores
(s) The Bahamas (ISO 3166 trigram)

BI

bi – (s) Bislami language (ISO 639-1 code)
Bi – (s) Bismuth
BI – (s) Burundi (ISO 3166 digram)
BIAP – (a) Baghdad International Airport – (p) Biafran pound
BICS – (i/a) Battlefield Information and Communication System
BID – (i) bis in die (Latin, "twice a day")
BIDST – (i) British Institute of Dental and Surgical Technologists
BIF – (s) Burundian franc (ISO 4217 currency code)
bih – (s) Bihari languages (ISO 639-2 code)
BIH – (s) Bosnia and Herzegovina (ISO 3166 trigram)
BIOS – (a) Basic Input/Output System – British Institute of Organ Studies
BIP – (a) Battlefield Interoperability Programme (ancestor of MIP) – Broadcast incremental power algorithm
bis – (s) Bislami language (ISO 639-2 code)
BISEPS – (a) Battlefield Identification System Environment Performance Simulation
BIST – (a) Built-In Self-Test
BIT – (a) Bilateral Investment Treaty – Built-In Test
BITE – (a) Built-In Test Equipment

BJ

BJ – (s) Benin (ISO 3166 digram) – (i) Blowjob (oral sex)
BJJ – (i) Brazilian Jiu-Jitsu
BJP – (i) Bharatiya Janata Party (Indian People's Party)
BJT – (i) Bipolar Junction Transistor

BK

Bk – (s) Berkelium
BK
(i) Burger King
(p) Bankrupt (most often seen as "gone BK")
(s) Bosnia and Herzegovina (FIPS 10-4 country code)
BKN – (s) Broken Sky (METAR Code)

BL

BL
(s) Bolivia (FIPS 10-4 country code)
(i) British Leyland
BLCSE – (i) Battle Laboratory Constructive Simulation Environment
BLDU – (s) Blowing Dust (METAR Code)
BLEVE – (a) Boiling Liquid Expanding Vapour Explosion ("blevy")
BLK – (i) Basket Liga Kobiet (Polish, "Women's Basketball League")
BLM
(a) Black Lives Matter
Bureau of Land Management (U.S.)
BLOB – (p) Binary Large OBject
BLR – (s) Belarus (ISO 3166 trigram)
BLSA – (s) Blowing Sand (METAR Code)
BLRSI – Battle Lab Reconfigurable Simulator (U.S. Army)
BLSN – (s) Blowing Snow (METAR Code)
BLT – (i) Bacon Lettuce Tomato (sandwich)
BLUFOR – (p) Blue Force(s) (military)
BLUI – (a/i) Body Language User Interface ("blooie")
BLW – (s) Below (METAR Code)
BLZ – (s) Belize (ISO 3166 trigram)

BM

bm – (s) Bambara language (ISO 639-1 code)
BM – (i) Battle Management – (s) Bermuda (ISO 3166 digram) – Myanmar (FIPS 10-4 country code; from Burma)
BMA – (i) British Medical Association
BMCC – (i) Borough of Manhattan Community College
BMD – (i) Ballistic Missile Defence – (s) Bermudian dollar (ISO 4217 currency code) – (i) Boyevaya Mashina Desanta (Russian Боевая Машина Десанта, "Combat Vehicle Airborne") † – British Military Doctrine
BMDG – (i) British Military Doctrine Group
BMDO – (i) (U.S.) Ballistic Missile Defense Organization ("bim-do")
BME – (p) Biomedical Engineering – (i) Black and Minority Ethnic group – Body Modification E-zine
BMEWS – (a/i) Ballistic Missile Early Warning System ("bee-mews")
BMI – (i) Body Mass Index – Broadcast Music Incorporated - British Midland International
BMG – (i) Bertelsmann Music Group
BML – (i) Battle Management Language
BMNT – (i) Begin Morning Nautical Twilight
BMP – (i) Boyevaya Mashina Pekhoti (Russian Боевая Машина Пехоты, "Combat Vehicle for the Infantry") †
BSF – (i) British Standard Fine (screw thread)
BSL
(i) Basketbol Süper Ligi (Turkish, "Basketball Super League"; top Turkish men's league)
British Sign Language
BSMB – (i) British Society for Matrix Biology
BSN
Baloncesto Superior Nacional (Spanish, "National Superior Basketball"; top Puerto Rican league)
Bank Simpanan Nasional (Malay, "National Savings Bank"; government-owned Malaysian bank)
BSNL
Bharat Sanchar Nigam Limited
(i) Bachelor of Science in Nursing
BSoD – (i) Blue Screen of Death (distinct from BSD)
BSP
(i) Between-Show Promotion
Binary Space Partitioning
Board Support Package
British Standard Pipe (screw thread)
(p) Business-sponsored
Bone sialoprotein
BSS
Block Starting with Symbol – see .bss
Boxed Set Syndrome – where one starts watching a boxed set of DVDs and just can't stop until you've watched them all
BST
(i) Binary search tree
Blended Sales Tax
(p) Bovine somatotropin
(i) British Summer Time
BSW
Bachelor of Social Work degree
(i) British Standard Whitworth (screw thread)
Blind Spot Warning, see Blind spot monitor
BSX – (i) Bendigo Stock Exchange

BT

Bt
(i) Baronet
Bacillus thuringiensis
BT
(i) Baal teshuva (Hebrew, "master of return") – used to describe a Jew who adopts Orthodox Judaism as an adult
Bathythermograph
(s) Bhutan (FIPS 10-4 country code; ISO 3166 digram)
(i) BitTorrent
British Telecom, the former name of the company now known as BT Group
Bluetooth
BTDT – (i) Been There, Done That
Bti – (i) Bacillus thuringiensis israelensis
BTID – (i) Battlefield Target Identification Device
BTIS – (i) Battlefield Target Identification System
BTN
(s) Bhutan (ISO 3166 trigram)
Bhutanese ngultrum (ISO 4217 currency code)
BTO – (i) Built To Order
BTP – (i) British Transport Police
BTR – (i) Bronetransporter (БТР = Бронетранспортер "(Heavy) Armoured (Personnel) Transporter") †