| Abbreviation | Definition |
|---|---|
| AAWV | Actively Articulated Wheeled Vehicle |
| AB | Airframe Bulkhead |
| ABC | Air Brake Converted |
| ABC | Aluminum Brass Chrome |
| ABDS | Accessory Belt Drive System |
| ABE | Autonomous Benthic Explorer |
| ABF | Already Broken Freight |
| ABF | Arkansas Best Freight |
| ABG | Auto Bus Grant |
| ABIS | Advanced Braking Indication System |
| ABP | Able Bodied Passenger |
| ABQ | Albuquerque International Airport |
| ABREV | Advanced Ballistic Re Entry Vehicle |
| ABS | After Body Section |
| ABS | Air Bag System |
| ABS | Airborne Backing Store |
| ABS | American Bureau of Shipping |
| ABS | Antilock Braking System |
| ABS | Automatic Block Signal |
| ABT | Active Brake Technology |