| Abbreviation | Definition |
|---|---|
| ACAAB | Any Card At Any Birthday |
| ACAB | A C A B |
| ACAB | All Communists Are Bastards |
| ACAB | All Cops Are Bastards |
| ACAB | All Cops Are Brave |
| ACAB | All Cops Are Bunnies |
| ACAB | Assigned Catgirl At Birth |
| ACAB | Atraumatic Coronary Artery Bypass |
| ACABS | Ancient Civilizations and Biblical Studies |
| ACAC | a cappella advisory council |
| ACAC | Acetylacetone ACAC Acetoacetate ACAC |
| ACAC | Air Conditioning At Cost |
| ACAC | all a cappella auditions council |
| ACAC | Allen Chapman Activity Center |
| ACAC | Another |
| ACAC | Another Choice Another Chance |
| ACAC | Atlanta Competitive |
| ACAC | Atlanta Competitive Advantage |
| ACAC | Atlanta Contemporary Art Center |
| ACAD | African Carbon Asset Development |