| Aragats | Mount Aragats |
| Aragatsotn | Aragatsotn |
| Aragon | Aragon |
| Aragonais | Aragonese language |
| Aragorn | Aragorn |
| Aragua FC | Aragua Fútbol Club |
| Arahuay | Arahuay District |
| araignée | spider |
| Araignée de mer | Maja squinado |
| araignée des jardins | diadem spider |
| araignée d’eau | water strider |
| Araignée rouge | Tetranychus urticae |
| Araire | Scratch-plough |
| Araitz | Araitz |
| arak | arrack |
| Arakaldo | Arakaldo |
| Arakan | Rakhine State |
| Arakil | Arakil |
| Aral AG | Aral AG |
| Arales | Arales |
| Aralia | Aralia |
| Aralia elata | Aralia elata |
| Araliaceae | Araliaceae |
| Aralosaurus | Aralosaurus |
| Aralé | Arale Norimaki |
| Aram Asatryan | Aram Asatryan |
| Aram Ier Keshishian | Aram I |
| Aram Khatchatourian | Aram Khachaturian |
| Aramaio | Aramayona |
| Aramark Corporation | ARAMARK |
| Arame | Aramu |
| Aramide | Aramid |
| Aramil | Aramil |
| Aramis | Aramis |
| Aramits | Aramits |
| Aramé | Arame |
| Araméen | Aramaic language |
| Araméen samaritain | Samaritan Aramaic language |
| Araméens | Aramaeans |
| Aramón Cerler | Cerler |
| Aramón Formigal | Formigal |
| Aramón Panticosa | Panticosa-Los Lagos |
| Aran | Aran |
| Aranais | Aranese language |
| Aranc | Aranc |
| Arancou | Arancou |
| Arancón | Arancón |
| Araneae | Spider |
| Araneidae | Orb-weaver spider |
| Araneomorphae | Araneomorphae |
| Araneus | Araneus |
| Araneus alsine | Araneus alsine |
| Araneus quadratus | Araneus quadratus |
| Araniella cucurbitina | Cucumber green spider |
| Aranjuez | Aranjuez |
| Aranno | Aranno |
| Arantxa Parra Santonja | Arantxa Parra Santonja |
| Arantxa Sánchez Vicario | Arantxa Sánchez Vicario |
| Arantza | Arantza |
| Arantzazu | Arantzazu |
| Aranuka | Aranuka |
| Aranyakas | Aranyaka |
| Aranđelovac | Aranđelovac |
| Arapaho | Arapaho |
| Ararat | Ararat |
| Ararat Erevan | FC Ararat Yerevan |
| Arash | Arash |
| Arathorn | Arathorn II |
| Aratinga | Aratinga |
| Aratinga acuticaudata | Blue-crowned Parakeet |
| Aratinga cactorum | Cactus Parakeet |
| Aratinga canicularis | Orange-fronted Parakeet |
| Aratinga erythrogenys | Red-masked Parakeet |
| Aratinga holochlora | Green Parakeet |
| Aratinga leucophthalmus | White-eyed Conure |
| Aratinga weddellii | Dusky-headed Parakeet |
| Arator | Arator |
| Aratos de Sicyone | Aratus of Sicyon |
| Aratos de Soles | Aratus |
| Aratta | Aratta |
| Arauca | Arauca Department |
| Araucana | Araucana |
| Araucaria du Chili | Araucaria araucana |
| Araucariaceae | Araucariaceae |
| Araux | Arreau |
| Aravane Rezaï | Aravane Rezaï |
| Arawaks | Arawak |
| Araxe | Aras River |
| arbalète | crossbow |
| arbalétrier | crossbowman |
| Arbaz | Arbaz |
| Arbedo-Castione | Arbedo-Castione |
| Arbellara | Arbellara |
| Arbelos | Arbelos |
| Arbent | Arbent |
| Arberg | Arberg |
| Arbignieu | Arbignieu |
| Arbigny | Arbigny |
| Arbin | Arbin |
| arbitrage | arbitrage |
| Arbitrages de Vienne | Vienna Awards |
| arbitraire | high-handed |
