Abaiang - Kiribati - Airport symbol (OAG)
Abai Sungai - Language code (ETLW)
ABC Fiberglass, Bradenton, FL - Manufacturer code for watercraft hull identification number (USCG)
Absolute Binody Final (SAUS)
Absolutely Bloody Final - Especially with reference to a drink
Activated Biofilter
Actors' Benevolent Fund - Australia
Adaptive Beam Forming (NVT)
Adobe Binary Screen Font (SAUS)
Advance Booking Fare - Airlines
Advanced Beamformer (MCD)
Advanced Bomb Family - Navy (DOMA)
Aerial Beam-shape Factor (SAUS)
Air Base Flight - Air Force
Airborne Freight - NYSE symbol
Airborne Freight Corp. - NYSE symbol (SPSG)
Air Burst Fuze
Aircraft Battle Force - Obsolete - Navy
American Bach Foundation (EA)
American Ballads and Folk Songs - A publication
American Banjo Fraternity (EA)
American Bar Foundation (EA)
American Beekeeping Federation (EA)
American Behcet's Foundation (EA)
American Best Corp. (EFIS)
American Bikeways Foundation - Defunct (EA)
American Blake Foundation (EA)
American Buyers Federation (EA)
Americas Boychoir Federation (EA)
America the Beautiful Fund (EA)
Ammonium Biflouride - Inorganic chemistry
Anaerobic Bacterial Flora - Microbiology
Anchor Block Foundation (EA)
Androgen-Binding Fraction - Medicine (MELL)
Annular Blast Fragmentation warhead (SAUS)
Antenna Beam-shape Factor (SAUS)
Anthropometry and Biomechanics Facility - A research laboratory
Aortic Blood Flow - Medicine (DMAA)
Aortobifemoral - Medicine (DMAA)
Application-by-Forms (HGAA)
Aquatic Base Flow (FERC)
Army Benevolent Fund - British
Asian Baptist Fellowship (SAUO)
Asset - or Availability Balance File - Military (AABC)
Associated British Foods - Commercial firm
Association of British Factors
Audio Bandpass Filter
Australian Bowling Federation
Australian Boxing Federation
Australian Bridge Federation
Automatic Beam Forming - Military (IUSS)
Availability Balance File - Military (AABC)
Average Branching Factor (IAA)
Aviation Boatswain's Mate, Fuel - Navy rating
Belgian Flight Centre - ICAO designator (FAAC)