| Abbreviation | Definition |
|---|---|
| ARAS | Atomic Resonance Absorption Spectrophotometry |
| ARAS | Automatic Ranger Alert System |
| ARAS | Radio Automation System |
| ARAT | Army Reprogramming Analysis Team |
| ARAW | American Rights At Work |
| ARB | A Road Bike |
| ARB | Accountability Review Board |
| ARB | Accumulative Roll Bonding |
| ARB | Acronymns Really Bite |
| ARB | Activated Roller Belt |
| ARB | Air Reserve Base |
| ARB | Alpha Ralpha Boulevard |
| ARB | Angiotensin Receptor Blockers |
| ARB | Anthony Ronald Brown |
| ARB | Anti Rebound Bar |
| ARB | Anti Roll Bracket |
| ARB | Appraisal Review Board |
| ARB | Argentine Rainbow Boa |
| ARB | Assessment Review Board |
| ARB | Athiest Religion Beliefs |