| airsickness | mareo |
| Airsoft | Airsoft |
| Airsoft guns | Airsoft |
| airspace | espacio aéreo |
| airspace planning | ordenación del espacio aéreo |
| airspeed | velocidad aérea |
| Airspeed Oxford | Oxford |
| airstream | estela |
| airstrip | pista de aterrizaje |
| airtight | hermético |
| Airvault | Airvault |
| airwaves | televisión |
| airway | aerovía |
| airways | vías respiratorias |
| Airwolf | Lobo del Aire |
| airwoman | aviadora |
| airworthiness | navegabilidad |
| airworthy | navegable |
| Airy disc | Disco de Airy |
| Airy disk | Disco de Airy |
| airy-fairy | fingido |
| Airén | Uva airén |
| Aisha | Aisha bint Abi Bakr |
| Aishiteruze Baby | Aishiteruze Baby |
| Aishwarya Rai | Aishwarya Rai |
| aisle | pasillo |
| Aisne | Aisne |
| Aisne River | Río Aisne |
| Aisso | Aissó |
| Ait Ouriaghel | Beni Urriaguel |
| Aita | Hades |
| Aitcho Islands | Islas Aitcho |
| Aithiopis | Etiópida |
| Aiti | Aiti |
| Aitne | Etna |
| Aiton | Aiton |
| Aitor González | Aitor González |
| Aitor Hernández | Aitor Hernández |
| Aitor Ocio | Aitor Ocio Carrión |
| Aitor Osa | Aitor Osa |
| Aitor Pérez | Aitor Pérez Arrieta |
| Aitutaki | Aitutaki |
| Aiwo | Aiwo |
| Aix | Aix |
| Aix-en-Provence | Aix-en-Provence |
| Aix-en-Provence Festival | Festival Internacional de arte lírico de Aix-en-Provence |
| Aix-la-Chapelle | Aquisgrán |
| Aix-les-Bains | Aix-les-Bains |
| Aixe-sur-Vienne | Aixe-sur-Vienne |
| Aizarnazabal | Aizarnazábal |
| Aizen Myo-o | Aizen Myō-ō |
| Aizoaceae | Aizoaceae |
| Aizuwakamatsu Castle | Castillo de Aizuwakamatsu |
| AJ Auxerre | Association de la Jeunesse Auxerroise |
| AJA | Antum |
| Aja Kim | Aja Kim |
| Ajaccio | Ajaccio |
| Ajangiz | Ajánguiz |
| ajar | entreabierto |
| Ajaria | Adjaria |
| Ajatashatru | Ajatashatru |
| Ajax | AJAX |
| Ajax the Lesser | Áyax el Menor |
| Ajdir | Axdir |
| Ajinomoto | Sabor umami |
| Ajman | Ajman |
| Ajmer | Ajmer |
| Ajmān | Ajman |
| Ajoblanco | Ajoblanco |
| Ajuda National Palace | Palacio de Ajuda |
| Ajuga reptans | Ajuga reptans |
| Ají pepper | Capsicum baccatum |
| Ak-Chin Indian Community | Comunidad India Ak-Chin |
| Ak-Dovurak | Ak-Dovurak |
| AKA | también conocido como |
| Aka-Bea language | Idioma bea |
| Akademgorodok | Akademgorodok |
| Akademio de Esperanto | Akademio de Esperanto |
| Akademos | Academo |
| Akaishi Mountains | Montañas Akaishi |
| Akaka Falls State Park | Parque Estatal de las Cataratas Akaka |
| Akallabêth | Akallabêth |
| Akamai Technologies | Akamai |
| Akan | akan |
| Akan language | Idioma acano |
| Akan languages | Idioma acano |
| Akan National Park | Parque Nacional Akan |
| Akan people | Pueblo Akan |
| AKARI | ASTRO-F |
| Akasha | Akasha |
| Akashi-Kaikyō Bridge | Gran Puente de Akashi Kaikyō |
| Akashic records | Registro akásico |
| Akatsuki | Organización Akatsuki |
| Akbar | Akbar |
| Akbar Hashemi Rafsanjani | Akbar Hashemi Rafsanjani |
| Akbar the Great | Akbar |
| ake | sierpe |
| Aken | Aquisgrán |
| Akeno Watanabe | Akeno Watanabe |
| Aker | Aker |
| Akershus | Akershus |
| Akershus Fortress | Akershus |
| Aketza Peña | Aketza Peña |
| AKG Acoustics | AKG |
| Akhaltsikhe | Akhaltsikhe |
| Akhenaten | Akenatón |
| Akhenaton | Akenatón |
| Akhkhazu | Ahhazu |
| Akhmad Kadyrov | Akhmad Kadyrov |
| Akhmim | Panópolis |
| Aki | Blighia |
| Aki Kaurismäki | Aki Kaurismäki |
| Akiba ben Joseph | Akiva ben Iosef |
| Akiba Rubinstein | Akiba Rubinstein |
| Akihabara | Akihabara |
| Akihito | Akihito |
| Akiko Hiramatsu | Akiko Hiramatsu |
| akimbo | en jarras |
| akin | semejante |
| akin to | relacionado |
| Akio Morita | Akio Morita |
| Akio Ohtsuka | Akio Ōtsuka |
| Akira | Akira |
| Akira Haraguchi | Akira Haraguchi |
| Akira Ifukube | Takashi Yoshimatsu |
| Akira Kurosawa | Akira Kurosawa |
| Akira Toriyama | Akira Toriyama |
| Akira Yamaoka | Akira Yamaoka |
| Akira Yoshizawa | Akira Yoshizawa |
| Akita | Akita |
| Akita Inu | Akita Inu |
| Akita Prefecture | Prefectura de Akita |
| Akita Shoten | Akita Shoten |
| Akkad | Acad |
| Akkadian | acadio |
| Akkadian Empire | Acad |
| Akkadian language | Idioma acadio |
| Akkar District | Akkar |
| Akon | Akon |
| Akranes | Akranes |
| Akrata | Akrata |
| Akron | Akron |
| Akrotiri | Acrotiri |
| Akrotiri and Dhekelia | Acrotiri y Dhekelia |
| AKS primality test | Test de primalidad AKS |
| Aksai Chin | Aksai Chin |
| Aksaray | Aksaray |
| Aksaray Province | Provincia de Aksaray |
| Akseli Gallen-Kallela | Akseli Gallen-Kallela |
| Akshak | Akshak |
| Aksumite Empire | Reino de Aksum |
| Aktau | Aktau |
| Aktionsart | Acción |
| Akula class submarine | Clase Akula |
| Akureyri | Akureyri |
| Akutagawa Prize | Premio Akutagawa |
| Akwá | Fabrice Maieco |
| Akzidenz Grotesk | Akzidenz Grotesk |
| al | Al Qaida |
| Al Ahmadi | Al Ahmadi |
| Al Ain FC | Al-Ain FC |
| Al Anbar Governorate | Al Anbar |
| Al Arabiya | Al-Arabiya |
| Al Askari Mosque | Mezquita Al Askari |
| Al Askari Mosque bombing | Mezquita Al Askari |
| Al Bahah Province | Provincia de Al Bahah |
| Al Bahr al Ahmar | Mar Rojo |
| Al Batinah Region | Al Batinah |
| Al Capone | Al Capone |
| Al Di Meola | Al Di Meola |
| Al Diwaniyah | Diwaniya |
| Al Farwaniyah | Al Farwaniyah |
| Al Fayyum | El-Fayum |
| Al Fayyum Governorate | El-Fayum |
| al fresco | al aire libre |
