| Aggregatietoestand | Skupenství |
| Agility | Agility |
| Aglaea | Aglaia |
| Aglaia | Aglaia |
| Agnes | Anežka |
| Agnes van Bohemen | Anežka Česká |
| Agnetha Fältskog | Agnetha Fältskog |
| Agnomen | Agnomen |
| agnosticus | agnostik |
| Agnotozoa | Morulovci |
| Agnus Dei | Agnus Dei |
| Agora | Agora |
| agorafobie | agorafobie |
| Agostinho Neto | António Agostinho Neto |
| Agostino Casaroli | Agostino Casaroli |
| Agrarische Partij van Wit-Rusland | Agrární strana Běloruska |
| agressie | agrese |
| agressief | útočný |
| Agricola | Agricola |
| Agrigento | Agrigento |
| Aguascalientes | Aguascalientes |
| Ahaggar | Ahaggar |
| Ahasverus | Ahasver |
| Ahimsa | Ahinsá |
| ahoi | ahoj |
| Ahuitzotl | Ahuitzotl |
| Aias | Ajax |
| Aichi | Prefektura Aiči |
| Aida | Aida |
| AIDCAS-model | AIDCAS |
| aids | AIDS |
| AIESEC | AIESEC |
| Aietes | Aiétés |
| Aigars Kalvītis | Aigars Kalvītis |
| Aigeus | Aigeus |
| Aigisthos | Aigisthos |
| Aigle | Orel |
| Aigues-Mortes | Aigues-Mortes |
| Aigyptos | Aigyptos |
| Aikido | Aikido |
| Aikiniet | Aikinit |
| Ain | Ain |
| Ainu | ainština |
| Ainur | Ainur |
| Air Crash Investigation | SOS |
| Air Force One | Air Force One |
| Air France | Air France |
| airconditioner | klimatizátor |
| airconditioning | klimatizace |
| airmail | letecká pošta |
| Airsoft | Airsoft |
| Aischylos | Aischylos |
| Aisne | Ain |
| Aisopos | Ezop |
| Aitne | Etna |
| Aitutaki | Aitutaki |
| Aix | AIX |
| Aix-en-Provence | Aix-en-Provence |
| Aix-les-Bains | Aix-les-Bains |
| AJ Auxerre | AJ Auxerre |
| Ajaccio | Ajaccio |
| Ajahn Chah | Adžán Čá |
| Ajax | Ajax |
| Ajin | Ain |
| Ajka | Ajka |
| Ajmag | Ajmag |
| aju | nashle |
| ajuin | cibule |
| ajuus | nashle |
| Ak-Dovoerak | Ak-Dovurak |
| Aka | Barmský box |
| Akaba | Akaba |
| Akademio de Esperanto | Esperantská akademie |
| Akademitsjeskaja | Akademičeskaja |
| Akan | akanština |
| Akarnan | Akarnán |
| Akashi-Kaikyo-brug | Most Akaši-Kaikjó |
| Akbar | Akbar Veliký |
| AKEL | Pokroková strana pracujícího lidu |
| akelei | orlíček |
| Aken | Cáchy |
| Akershus | Akershus |
| Akershus Slott | Akershus |
| Akh | Duše |
| Akhal-Teke | Achaltekinský kůň |
| Aki Kaurismäki | Aki Kaurismäki |
| Akihito | Akihito |
| Akira Kurosawa | Akira Kurosawa |
| Akita | Prefektura Akita |
| Akita inu | Akita Inu |
| Akkad | Akkad |
| Akkadisch | Akkadština |
| akker | pastvina |
| Akkergeelster | Křivatec žlutý |
| Akkerklokje | Zvonek řepkovitý |
| Akkerviooltje | Violka rolní |
| Akko | Akkon |
| akkoord | akord |
