| Abbreviation | Definition |
|---|---|
| ARHC | Andean Rural Health Corporation |
| ARI | Accelerated Reading Instituteuction |
| ARI | Accelerated Reading Instruction |
| ARI | Activity Recommendation Information |
| ARI | Adjusted Rand Index |
| ARI | Advancing Recovery in Ireland |
| ARI | Alabama Reading Initiative |
| ARI | Alpaca Registry Inc |
| ARI | Asterisk REST Interface |
| ARI | Augmented Reality Interface |
| ARI | Autofahrer Rundfunk Information |
| ARI | Automotive Resources International |
| ARIA | Accessible Rich Internet Applications |
| ARIA | Advanced Robot Interface for Applications |
| ARIA | Aspiration Resonance Invention and Action |
| ARIANA | Apple Remote Installation and Network Activator |
| ARIAS | Archives Records Information Access System |
| ARIB | Association of Radio Industries and Business |
| ARIB | Association of Radio Industries and Businessess |
| ARIC | Acbar Resource Information Centre |