| anybody | kto |
| Anycast | Anycast |
| Anykščiai | Onikszty |
| Anykščiai district municipality | Gmina rejonowa Onikszty |
| anyone | kto |
| anyplace | gdziekolwiek |
| anything | cokolwiek |
| anytime | zawsze |
| Anyuy River | Aniuj |
| anyway | zawsze |
| anywhere | gdziekolwiek |
| Anywhere but Home | Anywhere But Home |
| ANZAC Cove | Zatoka Anzac |
| Anzin | Anzin |
| Anzin-Saint-Aubin | Anzin-Saint-Aubin |
| Anzing | Anzing |
| Anzio | Anzio |
| Anzonico | Anzonico |
| Anzor Kavazashvili | Anzor Kawazaszwili |
| Anzoátegui | Anzoátegui |
| ANZUS | Pakt Bezpieczeństwa Pacyfiku |
| Anárion | Anárion |
| Aníbal Cavaco Silva | Aníbal Cavaco Silva |
| Aníbal Troilo | Anibal Carmelo Troilo |
| Anórien | Anórien |
| Anže Kopitar | Anže Kopitar |
| AO | AO |
| Aoede | Aoede |
| Aoide | Aoede |
| Aoidos | Aojda |
| AOL | AOL |
| AOL Instant Messenger | AOL Instant Messenger |
| Aomori | Aomori |
| Aomori Prefecture | Prefektura Aomori |
| Aon Center | Aon Center |
| Aonyx | Aonyx |
| aorist | aoryst |
| aorta | aorta |
| Aortic aneurysm | Tętniak aorty |
| Aortic coarctation | Koarktacja aorty |
| Aosta | Aosta |
| Aosta Valley | Dolina Aosty |
| Aoudaghost | Audaghust |
| Aouzou Strip | Strefa Aozou |
| AOX value | zawartość organicznych halogenów AOX |
| Apach | Apach |
| Apache | Apacze |
| Apache Ant | Apache Ant |
| Apache HTTP Server | Apache |
| Apache License | Apache License |
| Apache Maven | Apache Maven |
| Apache Struts | Struts |
| Apache Tomcat | Apache Tomcat |
| Apache Velocity | Velocity |
| Apalachee | Apalakowie |
| Apamea | Apamea |
| apartheid | apartheid |
| apartment | apartament |
| apartment block | apartamentowiec |
| apartment building | blok mieszkalny |
| apartment-house | kamienica |
| Apate | Apate |
| apathetic | apatyczny |
| apathy | apatia |
| Apatin | Apatin |
| apatite | apatyt |
| Apatity | Apatyty |
| ape | małpa |
| Apeldoorn | Apeldoorn |
| Apeliotes | Apeliotes |
| Apella | Apella |
| Apelles | Apelles |
| Apen | Małpy właściwe |
| Apenine peninsula | Półwysep Apeniński |
| Apenines | Apeniny |
| Apennine culture | Kultura apenińska |
| Apennine Mountains | Apeniny |
| Apennine Peninsula | Półwysep Apeniński |
| Apennines | Apeniny |
| Apennins | Apennins |
| Apep | Apop |
| Aper Aku Stadium | Aper Aku Stadium |
| Apert syndrome | Zespół Aperta |
| Apertura and Clausura | Apertura i Clausura |
| aperture | przysłona |
| apex | szczyt |
| Apfeldorf | Apfeldorf |
| Apfeltrach | Apfeltrach |
| APG II system | System APG II |
| APG system | APG I |
| Apgar score | Skala Apgar |
| Aphakia | Afakia |
| Aphanes | Skrytek |
| Aphareus | Aphareus |
| aphasia | afazja |
| Aphelandra | Afelandra |
| Aphelandra squarrosa | Afelandra stercząca |
| apheresis | afereza |
| Aphex Twin | Aphex Twin |
| aphid | mszyca |
| Aphididae | Mszyce |
| aphonia | afonia |
| aphorism | aforyzm |
