| Abbreviation | Definition |
|---|---|
| ARA | Analog Radio Adapter |
| ARA | Anytime Repairing A |
| ARA | Apartment Realty Advisors |
| ARA | Askaryan Radio Array |
| ARA | Assessing Reserve Adequacy |
| ARA | Assets Recovery Agency |
| ARA | Audio Random Access |
| ARA | Austin Radiological Association |
| ARA | Automatic Retailers of America |
| ARA | Average Relative Abundance |
| ARA | Average Resource Availability |
| ARA | Awards and Recognition Association |
| ARA | records Ansible |
| ARAB | Active Retentive Anchorage Baseplate |
| ARAB | Ancient Records of Assyria and Babylonia |
| ARAB | Apocalypse Rising Advisory Board |
| ARAB | Arabian ARABIAN A breed |
| ARABS | Arabic |
| ARAC | Accommodation Review Advisory Committee |
| ARAC | Aleb Resource And Alliance Center |