| Abbreviation | Definition |
|---|---|
| APV | Armored Patrol Vehicles |
| AR | Attempted Rape |
| AR | Superior Court Administrative Rules (court rules) |
| ARA | Anti Rascist Actions |
| ARA | Any Responsible Adult |
| ARB | Arbitrator |
| ARC | Abject Reform Confinement |
| ARC | Addicts Rehabilitation Center |
| ARC | Alcohol Recovery Center |
| ARC | Awareness Responsibility Communication |
| ARCW | Annotated Revised Code of Washington |
| ARD | Accelerated Rehabilitative Disposition |
| ARDIS | A Commercial Radio Messaging Service |
| ARELLO | Association Of Real Estate License Law Officials |
| ARF | Advanced Recovery Fee |
| ARIA | Antagonism, Resonance, Invention, and Action |
| ARIS | Attack Registry And Intelligence Service |
| ARLJ | Administrative Rules for Courts of Limited Jurisdiction (court rules) |
| ARLO | Animal Rights Law Office |
| ARLS | Addiction Recovery Legal Services |