| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ARA | Attitude Reference Assembly | In English | → Astronautics |
| ARA | Auxiliary Recovery Antenna | In English | |
| ARA | Altstoff Recycling Austria (www.ara.at) | In German | → Environmental technology, water supply, waste management → 5023 → Austria |
| ArA | Arkiv för Astronomi | In Swedish | → Serial publications, periodicals → Astronomy |
| ARA | Asociaţia Română a Apei (www.ara.ro) | In Romanian | → Associations → Hydrology → 626 → Environmental technology, water supply, waste management |
| ARA | Amore Riparazione e Apostolato | In Italian | → Christianity |