| Abbreviation | Definition |
|---|---|
| 3PMSF | 3 Peak Mountain Snow Flake |
| A | Autos |
| A/DACG | Arrival / Departure Airfield Control Group |
| A/G | Air - To - Ground |
| A/H | Antwep /Hamburg Range |
| A/I | Accident/Incident |
| A3 | Automatic Three Speed |
| A4 | Automatic Four Speed |
| A5 | Automatic Five Speed |
| AA | American Airlines |
| AA | Automobile Association |
| AAA | All Ages and Abilities |
| AAA | American Automobile Association |
| AAA | Arrival Arrangements Agreements |
| AAA | Auckland Automobile Association |
| AAA | Automated Airlift Analysis |
| AAAA | Australian Automotive Aftermarket Association |
| AAC | Advanced Activity Concept |
| AAC | Advanced AERA Concepts |
| AAC | Airport Aircraft Capacity |