| Abbreviation | Definition |
|---|---|
| AARA | Anaheim Amateur Radio Association |
| AARA | Antique Auto Racing Association |
| AARA | Aoibhneas an Rince Auxiliary |
| AARA | Arizona Alliance for Retired Americans |
| AARB | Adopt A Rental Block |
| AARB | Advanced Aerial Refueling Boom |
| AARB | Advising Architecture Review Board |
| AARB | Amazing Assortment of Retired Beagles |
| AARB | Amics de l'Art Rom??nic del Bages |
| AARB | Amics de l'Art Romànic del Bages |
| AARB | Art and Architecture Review Board |
| AARC | Abused Adult Resource Center |
| AARC | Academic Administrative Resource Center |
| AARC | Academic Assistance and Resource Center |
| AARC | Affinely Adjustable Robust Counterpart |
| AARC | Alamo Area Resource Center |
| AARC | Alberta Adolescent Recovery Centre |
| AARC | Alcohol Addictions Resource Center |
| AARD | Aardwolf |
| AARD | Angat Afterbay Regulatory Dam |