| Abbreviation | Definition |
|---|---|
| AA | Activities and Attitudes |
| AA | Armed Assault |
| AA | Attitude Adjustment |
| AAAJ | Asian Americans Advancing Justice |
| AAAL | American Academy of Appellate Lawyers |
| AAB | American Admiralty Bureau |
| AAB | As Amended By |
| AAB | Assault Amphibian Battalion |
| AABA | Asian American Bar Association |
| AABC | Action Against Business Crime |
| AAC | Atlantic Anarchist Circle |
| AAC | Augmentative and Alternative Communication |
| AACA | American Alliance of Creditor Attorneys |
| AACA | American Anti-Corruption Act |
| AACA | Arizona Association of Crime Analysts |
| AACAN | Action Against Child Abuse and Neglect |
| AACE | American Association of Code Enforcement |
| AACJ | Arizona Attorneys for Criminal Justice |
| AACJ | Associate of Arts in Criminal Justice |
| AACP | American Alliance Certified Paralegal |