| A.C.A.B | ChWDP |
| a.m. | przed |
| a.u | j.a. |
| AA | AA |
| AA (Alcoholics Anonymous) | AA |
| AAA | Asistencia Asesoría y Administración |
| Aabenraa | Aabenraa |
| Aabenraa Municipality | Gmina Aabenraa |
| Aabybro | Gmina Aabybro |
| Aachen | Akwizgran |
| Aachen Cathedral | Katedra w Akwizgranie |
| Aadorf | Adorf |
| Aage Niels Bohr | Aage Niels Bohr |
| aah | ach |
| AAL | Aal |
| Aalborg | Aalborg |
| Aalborg Air Base | Port lotniczy Aalborg |
| Aalborg Airport | Port lotniczy Aalborg |
| Aalborg Boldspilklub | AaB Aalborg |
| Aale Imran | Al-Imran |
| aalenian | aalen |
| Aalestrup Municipality | Gmina Aalestrup |
| Aalesunds FK | Aalesunds FK |
| Aaliyah | Aaliyah |
| Aalsmeer | Aalsmeer |
| Aalst | Aalst |
| aAmplitude | amplituda |
| Aar | Aare |
| Aarau | Aarau |
| Aarberg | Aarberg |
| Aarburg | Aarburg |
| aardvark | mrównik |
| Aargau | Argowia |
| Aarhus | Århus |
| Aarhus Convention | Konwencja z Aarhus |
| Aarhus County | Århus Amt |
| Aarhus Gymnastik Forening | AGF Århus |
| Aarhus Municipality | Gmina Århus |
| Aaron | Aaron |
| Aaron Abeyta | El Hefe |
| Aaron ben Moses ben Asher | Aaron ben Mosze ben Aszer |
| Aaron Burr | Aaron Burr |
| Aaron Carter | Aaron Carter |
| Aaron Ciechanover | Aaron Ciechanover |
| Aaron Copland | Aaron Copland |
| Aaron Klug | Aaron Klug |
| Aaron Lennon | Aaron Lennon |
| Aaron Spelling | Aaron Spelling |
| Aars | Gmina Aars |
| Aarskog-Scott syndrome | Zespół Aarskoga |
| Aarup | Gmina Aarup |
| Aarup Municipality | Gmina Aarup |
| Aarón Ñíguez | Aarón Ñíguez |
| AAS | Aas |
| Aash Al Maleek | Hymn Arabii Saudyjskiej |
| Aasiaat | Aasiaat |
| Aaskov Municipality | Gmina Aaskov |
| AB Svensk Filmindustri | Svensk Filmindustri |
| Ab urbe condita | Ab urbe condita |
| Ababda | Ababde |
| abaca | banan manilski |
| abacavir | abakawir |
| aback | do tyłu |
| Abaco | Abakus |
| Abaco Islands | Wielkie Abaco |
| abactor | złodziej |
| abacus | abakus |
| Abadan | Abadan |
| Abaddon | Abaddon |
| Abae | Abaj |
| Abagtha | Abagta |
| Abainville | Abainville |
