| Abbreviation | Definition |
|---|---|
| AR | Assessment Report |
| ARA | Automatic Response Agreement |
| ARAP | Assigned Risk Adjustment Program |
| ARB | ARBitrary |
| ARBCOM | ARBitration COMmittee |
| ARC | Advice and Reformation Committee |
| ARC | Attentive Reliable Courteous |
| ARD | Annual Review and Determination |
| ARDLC | Automatic Revolving, Documentary Letter of Credit |
| ARGM | Assistant Restaurant General Manager |
| ARI | Application, Resume, Interview |
| ARK | Assets Resources And Knowledge |
| ARL | Approaching Real Life |
| ARM | Accelerated Reply Mail |
| ARM | Adjustable Rate Mortgage |
| ARM | Aggressive Risk Management |
| ARM | Attract, Retain, And Motivate |
| ARP | Actual Reduction to Practice |
| ARP | Administrative Remedy Procedure |
| ARP | Advanced Research Program |