| airco | air-conditioning |
| airconditioned | air-conditioned |
| airconditioner | air conditioner |
| airconditioning | air-conditioning |
| Aircraft Communications Addressing and Reporting System | Aircraft Communication Addressing and Reporting System |
| Aire | Area |
| Aire-la-Ville | Aire-la-Ville |
| airedale | Airedale |
| airedale terriër | Airedale |
| Airel | Airel |
| Airhockey | Air hockey |
| Airkenya | Airkenya Express |
| Airmiles | Air Miles |
| Airon-Notre-Dame | Airon-Notre-Dame |
| Airon-Saint-Vaast | Airon-Saint-Vaast |
| Airoux | Hérault |
| Airport Weeze | Airport Weeze |
| Airports Council International | Airports Council International |
| Airsoft | Airsoft |
| Airstars Airways | Airstars |
| airstrip | strip |
| AirTran Airways | AirTran Airways |
| Airvault | Airvault |
| Airwolf | Airwolf |
| Airy-schijf | Airy disc |
| Aischylos | Aeschylus |
| Aishwarya Rai | Aishwarya Rai |
| Aislingen | Aislingen |
| Aisne | Aisne |
| Aisopos | Aesop |
| Aistulf | Aistulf |
| Aisy | Aisy cendré |
| Aisén | Aysen |
| Ait Waryaghar | Ait Ouriaghel |
| AitBenHaddou | Aït Benhaddou |
| Aiterhofen | Aiterhofen |
| Aitern | Aitern |
| Aiti | Aiti |
| Aitne | Aitne |
| Aitor Beguiristain | Txiki Beguiristáin |
| Aitor González | Aitor González |
| Aitor Hernández | Aitor Hernández |
| Aitor Osa | Aitor Osa |
| Aitor Pérez Arrieta | Aitor Pérez |
| Aitrach | Aitrach |
| Aitrang | Aitrang |
| Aitutaki | Aitutaki |
| Aiud | Aiud |
| Aius Locutius | Aius Locutius |
| Aiwo | Aiwo |
| Aix-en-Diois | Aix-en-Diois |
| Aix-en-Ergny | Aix-en-Ergny |
| Aix-en-Issart | Aix-en-Issart |
| Aix-en-Othe | Aix-en-Othe |
| Aix-en-Provence | Aix-en-Provence |
| Aix-les-Bains | Aix-les-Bains |
| Aix-Noulette | Aix-Noulette |
| Aixe-sur-Vienne | Aixe-sur-Vienne |
| Aizarnazabal | Aizarnazabal |
| Aizawl | Aizawl |
| Aizier | Ayzieu |
| Aizkraukle | Aizkraukle District |
| AJ Auxerre | AJ Auxerre |
| Ajaccio | Ajaccio |
| Ajahn Chah | Chah Subhatto |
| Ajahn Sumedho | Ajahn Sumedho |
| Ajangiz | Ajangiz |
| Ajanta | Ajanta Caves |
| Ajat | Ajat |
| Ajax | Ajax |
| Ajax Cape Town | Ajax Cape Town FC |
| Ajax Kaapstad | Ajax Cape Town FC |
| Ajdovščina | Ajdovščina |
| Ajin | Ayin |
| Ajjoebiden | Ayyubid dynasty |
| Ajka | Ajka |
| Ajmag | Aimags of Mongolia |
| Ajmag Bulgan | Bulgan Province |
| Ajman | Ajman |
| Ajna | Ajna |
| Ajon | Ayon Island |
| AJS | AJS |
| aju | bye |
| ajuin | onion |
| ajuus | bye |
| Ak-Dovoerak | Ak-Dovurak |
| AK-partij | Justice and Development Party |
| Akaba | Aqaba |
| AKABE | Extension Scouting |
| Akademgorodok | Akademgorodok |
| Akademik Sofia | Akademik Sofia |
| Akademio de Esperanto | Akademio de Esperanto |
| akademisch | academic |
| Akademisk Boldklub | Akademisk Boldklub |
| Akademitsjeskaja | Akademicheskaya |
| Akademmistetsjko | Akademmistechko |
| Akagi | Japanese aircraft carrier Akagi |
| Akai MPC | Music Production Center |
| Akallabêth | Akallabêth |
| Akan | Akan |
| Akarnan | Acarnan |
| Akashi-Kaikyo-brug | Akashi-Kaikyō Bridge |
| Akatoej-katorga | Akatuy katorga |
