| aquilin | Roman |
| aquilon | boreas |
| Aquilée | Aquileia |
| Aquin | Aquino |
| Aquino | Aquino |
| Aquitain | Aquitanian language |
| Aquitaine | Aquitaine |
| Aquitanien | Aquitanian |
| Aquivaldo Mosquera | Aquivaldo Mosquera |
| Ar Riyad | Riyad Province |
| Ar-Rachid | Al-Rashid |
| Ar-Raqqa | Ar-Raqqah |
| ara | macaw |
| Ara bleu | Blue-and-yellow Macaw |
| Ara chloroptère | Green-Winged Macaw |
| Ara de Illiger | Blue-winged Macaw |
| Ara de Lafresnaye | Red-fronted Macaw |
| Ara glauque | Glaucous Macaw |
| Ara hyacinthe | Hyacinth Macaw |
| Ara macao | Scarlet Macaw |
| Ara macavouanne | Red-bellied Macaw |
| Ara militaire | Military Macaw |
| Ara sévère | Chestnut-fronted Macaw |
| Ara à collier jaune | Golden-collared Macaw |
| Ara à gorge bleue | Blue-throated Macaw |
| Arab Air Carriers Organization | Arab Air Carriers Organization |
| Arab Radio and Television Network | Arab Radio and Television Network |
| Arabah | Arabah |
| Arabe | Arab |
| arabe classique | Classical Arabic |
| Arabe dialectal | Varieties of Arabic |
| arabe littéral | Fus-ha |
| arabe standard | Fus-ha |
| arabe tunisien | Tunisian Arabic |
| arabe égyptien | Egyptian Arabic |
| Arabes | Arab |
| Arabes américains | Arab American |
| Arabes chrétiens | Arab Christians |
| Arabes israéliens | Arab citizens of Israel |
| Arabette | Arabis |
| Arabette des Alpes | Arabis alpina |
| Arabette des dames | Arabidopsis thaliana |
| Arabidopsis | Arabidopsis |
| Arabie | Arabian Peninsula |
| Arabie Saoudite | Saudi Arabia |
| Arabie Séoudite | Saudi Arabia |
| Arabika | Arabika Massif |
| Arabinose | Arabinose |
| Arabique | Arabian |
| arabisant | Arabist |
| arabisante | Arabist |
| Arabisation | Arabization |
| arable | arable |
| Aracaju | Aracaju |
| Araceae | Araceae |
| arachide | peanut |
| Arachne | Shelob |
| Arachnida | Arachnid |
| arachnide | arachnid |
| arachnides | arachnids |
| Arachnoïde | Arachnoid mater |
| arachnoïdien-ne | filamentous |
| Arachné | Arachne |
| arachnéen | spidery |
| Arachosie | Arachosia |
| Aradac | Aradac |
| Araeoscelidia | Araeoscelidia |
| Aragami | Aragami |
| Aragats | Mount Aragats |
