| Astronomical Observatory of Capodimonte | Observatoire astronomique de Capodimonte |
| Astronomical optics | Optique astronomique |
| Astronomical research | Recherche astronomique |
| Astronomical seeing | Seeing |
| Astronomical Society of the Pacific | Astronomical Society of the Pacific |
| Astronomical spectroscopy | Spectroscopie astronomique |
| Astronomical symbols | Symbole astronomique |
| Astronomical techniques | Technique astronomique |
| Astronomical transit | Transit astronomique |
| astronomical unit | unité astronomique |
| astronomically | astronomiquement |
| Astronomische Gesellschaft Katalog | Catalogue AGK |
| astronomy | astronomie |
| Astronotus | Oscar |
| Astrophysical jets | Jet astrophysique |
| astrophysics | astrophysique |
| Astrophytum | Astrophytum |
| Astrosociobiology | Astrosociobiologie |
| Astroviridae | Astroviridae |
| Astur | asturien |
| Astur-Leonese | asturien |
| Asturcon | Asturcón |
| Asturian | asturien |
| Asturian architecture | Art asturien |
| Asturian-Leonese | asturien |
| Asturias | Asturies |
| astute | astucieux |
| astuteness | perspicacité |
| Astyages | Astyage |
| Astyanax | Astyanax |
| Astydameia | Astydamie |
| Astyoche | Astyoché |
| Astypalaia | Astypalée |
| Astérix | Astérix |
| Asuka Langley Soryu | Asuka Soryu Langley |
| Asuka period | Période Asuka |
| Asuma Sarutobi | Asuma Sarutobi |
| Asunción | Asunción |
| Asunción Capital District | Asunción Distrito Capital |
| Asura | Asura |
| Asuran | Asuran |
| ASUS | ASUSTeK Computer |
| ASUS Eee PC | Asus Eee PC |
| ASVEL Lyon-Villeurbanne | ASVEL Lyon-Villeurbanne |
| Asw | Onde acoustique de surface |
| Aswan | Assouan |
| Aswan Governorate | Assouan |
| Asx | ASX |
| asylum | asile |
| asymmetric | asymétrique |
| Asymmetric multiprocessing | Asymmetric multiprocessing |
| Asymmetric warfare | Guerre asymétrique |
| asymmetrical | asymétrique |
