| Abbreviation | Definition |
|---|---|
| AREF | Arkansas Rural Endowment Fund |
| AREG | Authors Rights Expert Group |
| AREM | All Random Easy Mode |
| AREM | Association Royale des Etudiants en Médecine |
| AREM | Auditory Rare Event Monitoring |
| AREM | Auditory Rare Event Monitoring |
| AREM | Avian Richness Evaluation Method |
| AREN | Adaptive Replication for Edge Networks |
| AREN | Additional Requirements for Emergent Needs |
| ARENA | A Representative Exhibition for New Artists |
| AREP | Aboriginal Rural Education Program |
| AREP | Accelerated Rural Electrification Programme |
| AREP | Alternative Refrigerants Evaluation Program |
| AREP | Ascripts Random Exit Popup |
| ARES | Agile Responsive Effective Support |
| ARES | Alternative Retail Electric Supplier |
| ARES | Amateur Radio Emergency Services |
| ARES | Amatuer Radio Emergency Services |
| ARES | American Radiation Eradication in Space |
| ARES | Aural RPG Experience System |