| Abbreviation | Definition |
|---|---|
| AA | A A a |
| AA | A Aa |
| AA | A Alcoholics |
| AA | Abdominal Aortic |
| AA | Above Average |
| AA | acronym and AA |
| AA | Active and |
| AA | Active Assassins |
| AA | Adams Arms |
| AA | After Air |
| AA | Air Activated |
| AA | Alcoholic Anonymous |
| AA | All Again |
| AA | Almost A |
| AA | Altered Attitudes |
| AA | Amazingly Awesome |
| AA | Ambient Air |
| AA | an associate |
| AA | Anal Addiction |
| AA | Anesthesiologist Assistants |