| Anything But Smart | Academic & Science |
| Academy of Biblical Studies | Academic & Science |
| Animal Behaviour Society | Academic & Science |
| Association of Bucknell Students | Academic & Science |
| Applied Behavioral Science | Academic & Science |
| Aston Business School | Academic & Science |
| American Bryological Society | Academic & Science |
| American Begonia Society | Academic & Science |
| American Bonanza Society | Academic & Science |
| Air Break Switch | Academic & Science |
| American Brachytherapy Society | Academic & Science |
| American Bladesmith Society | Academic & Science |
| American Bonsai Society | Academic & Science |
| Antiquarian Bookman Society | Academic & Science |
| Accounting and Billing System | Accounts and Finance |
| Alternative Business Structure | Accounts and Finance |
| Abu Simbel | Airport Code |
| Audited Balance Sheet | Banking |
| Anti Balance System | Business |
| Anti-Ballistic Selenium | Business |
| Albertson's, Inc. | Business |
| Alex Brown and Sons | Business |
| Alcoa Business Systems | Business |
| Agile Body Suit | Business |
| Area Breakdown Structure | Business |
| American Business School | Business |
| Alternative Bank Switzerland | Business |
| Aviation Business System | Business |
| Annual Business Survey | Business |
| Animal Behavior Society | Business |
| Associated Biomedical Systems, Inc. | Business |
| Asset Based Style | Business |
| Another Blunt Session | Business |
| Absorb | Chemistry |
| Acrylonitrile Butadiene Styrene | Chemistry |
| Alkyl Benzenesulfonate | Chemistry |
| Area Bible Studies | Community |
| American Bible Society | Community |
| Aurora Beach Society | Community |
| Area Bible Study | Community |
| Anti Bullying Strategies | Community |
| Association for Broadcast Standards | Community |
| Anti-lock Breaking System | Community |
| Adult Bible Study | Community |
| Association of Business Schools | Community |
| Association of Breast Surgery | Community |
| Association for Borderlands Studies | Community |
| American Biophysical Society | Community |
| Association on Broadcasting Standards | Community |
| Amman Baccalaureate School | Community |
| American Boxwood Society | Community |
| American Behavioral Scientist magazine | Community |
| Airport Base Station | Computer Hardware |
| Automatic Backup System | Computer Hardware |
| Anything But Soaps | Computing |
| Automated Batch Submission | Computing |
| Adventure Battle System | Computing |
| Anti Blockier System | Computing |
| Automatic Balance System | Computing |
| Anti Bumping System | Computing |
| Absorbing Shocks System | Computing |
| Address Book Synchronization | Computing |
| Advanced Broadcast Systems | Computing |
| Alternate Billing Service | Computing |
| Audio Bit Stream | Computing |
| Absent Subscriber | Computing |
| Alerting Base Station | Computing |
| Advanced Buffering System | Computing |
| Application Bridge Server | Computing |
| American Broadcasting System | Computing |
| Azure Bot Service | Computing |
| Average Busy Session | Computing |
| Avira Browser Safety | Computing |
| Azure Blob Storage | Computing |
| Allocation Based Scheduling | Computing |
| Active Battery Security | Computing |
| Absorber Protocol | Cryptocurrency |
| Autobusd | Cryptocurrency |
| Associate In Business Science | Educational Degree |
| Associate In Business Studies | Educational Degree |
| Associate In Baccalaureate Studies | Educational Degree |
| Accelerated Bachelor of Science | Educational Degree |
| Antilock Braking System | Electronics |
| Automatic Brightness Stabilization | Electronics |
| Automatic Blip Scan | Electronics |
| Abstracts (info File) | File Type |
| Abscissa Data File | File Type |
| Active Bitter Supplement | General |
| Anchor Bolt Stabilizer | General |
| Poly(Acrylonitrile Butadiene Styrene) | General |
| Advanced Bash Scripting | General |
| Arch Build System | General |
| Advanced Broadcast Solutions | General |
| American Brachytherapy | General |
| Antilock brake systems | General |
| Another Buyer Surcharge | General |
| Acrylonitrile, Butadiene, and Styrene | General |
| Australian Bonanza Society | General |
| American Bouldering Series | General |
| Avalanche Balloon Securesystem | General |
| Anti braking System | General |
| Auto Butt Slapper | General |
| Aaron Burr, Sir | General |
| Acylonitrile Butadiene Styrene | General |
| American Bidding for Street names | General |
| Audible Brake System | General |
| All Brake Systems | General |
| Anti Block System | General |
| abbreviation Abs stands | General |
| Bull Search | General |
| American Building Supply | General |
| Alcohol Beverage Services | General |
| Anti Blocking System | General |
| Antilock Brake System | General |
| Automatic Brake System | General |
| Automated Bocle System | General |
| Auto Body Specialists | General |
| Auto Bild Sportscars | General |
| Absorber | General |
| Axle Pivot Bush | General |
| American Budgerigar Society | General |
| Automotive Business Solutions | General |
| Adjustable Braking System | General |
| Advanced Brake System | General |
| Auto Build-Up Services | General |
| Active Bonnet System | General |
| Automotive Broker Services | General |
| American Behavioral Scientist | General |
| Acronym Abbreviation Slang | General |
| Asia Broadcast Satellite | General |
| Air Bag System | Governmental |
| Access and Benefit Sharing | Governmental |
| Automatic Block Signal | Governmental |
| American Bureau of Shipping | Governmental |
| Area Bus Supervisor | Governmental |
| Airborne Backing Store | Governmental |
| ABOHAR | Indian Railway Station |
| Ana Bellek Sürücüsü | International |
| Aux Bons Soins de | International |
| Always Be Smiling | Internet |
| Absolute | Maths |
| Asian Back Syndrome | Medical |
| chromosome aberration(s) | Medical |
| abdominal muscles | Medical |
| abdominal surgery | Medical |
| Able-Bodied Subject | Medical |
| Abdominals | Medical |
| Absorbed | Medical |
| American Board of Surgery | Medical |
| absorption | Medical |
| Acid-Base Status | Medical |
| Acute Bacterial Sinusitis | Medical |
| Acute Brain Syndrome | Medical |
| Adaptive Behaviour Scale | Medical |
| Admitting Blood Sugar | Medical |
| Adult Basic Skills | Medical |
| Ageing Brain Syndrome | Medical |
| American Back Society | Medical |
| American Board of Sexology | Medical |
| Amniotic Band Sequence | Medical |
| Amniotic Band Syndrome | Medical |
| Antilock Braking Systems | Medical |
| Arterial Blood Sampling | Medical |
| At Bed Side | Medical |
| Autonomous Biological System | Medical |
| American Breeder Service | Medical |
| Albino Blacksheep | Messaging |
| Automated Briefing System | Military and Defence |
| Advanced Battle Simulation | Military and Defence |
| Anti Burst System | Military and Defence |
| Automated Beam Steering | Military and Defence |
| Action Battle System | Military and Defence |
| Able Bodied Seaman | Military and Defence |
| Air Base Security | Military and Defence |
| Air Base Simulator | Military and Defence |
| Air Base Squadron | Military and Defence |
| Absent | Military and Defence |
| Atlantic Base Section | Military and Defence |
| Antenna Base Spring | Military and Defence |
| Absorbance | Physics Related |
| Alabama Southern Railroad | Regional |
| Australian Bureau of Statistics | Regional |
| Anti Burn Shield | Space Science |
| After Body Section | Space Science |
| Air Breathing System | Space Science |
| Air Base Supply | Space Science |
| Anti Bolt Stick | Sports |
| Active Battle System | Sports |
| Abdomen Six pack | Sports |
| Asset Backed Securities | Stock Exchange |
| Asset-backed Security | Stock Exchange |
| Automated Bond System | Stock Exchange |
| Abu Simbel Airport | Transport & Travel |
