| Abbreviation | Definition |
|---|---|
| ABE | Acceptor Bound Exciton |
| ABEI | Authority of Broadcasting and Electronic Information |
| ABF | Adaptive BeamFormer |
| ABF | Agile Bandpass Filter |
| ABH | Android Brotherhood |
| ABI | Audio Binary Interface |
| ABL | Automatic Brightness Limiter |
| ABM | Activity Based Management |
| ABR | Anti Burn Regulator |
| ABS | Antilock Braking System |
| ABS | Automatic Blip Scan |
| ABS | Automatic Brightness Stabilization |
| ABSC | Automatic Blip Scan Counter |
| ABT | Advanced Brightness Technology |
| ABU | Analog Back-Up |
| AC | Amplifier Combination |
| AC | Audio Code |
| AC | Automatic Control |
| AC | Autonomous Control |
| AC/DC | Alternating Current/Direct Current |