| Astra | Opel Astra |
| astracã | astrakhan |
| astral | astral |
| astralmia | astralmyh |
| Astrid da Noruega | Princess Astrid of Norway |
| Astrid da Suécia | Astrid of Sweden |
| Astrid Lindgren | Astrid Lindgren |
| astro | star |
| astro de cinema | film star |
| Astrocitoma | Astrocytoma |
| Astrodinâmica | Orbital mechanics |
| Astrodon johnstoni | Astrodon |
| astrofísica | astrophysics |
| astrofísico | astrophysicist |
| Astrogeologia | Planetary geology |
| Astrolite | Astrolite |
| astrologia | astrology |
| Astrologia chinesa | Chinese astrology |
| Astrologia e alquimia | Classical planets in Western alchemy |
| Astrolábio | Astrolabe |
| astrológico | astrological |
| astrometria | astrometry |
| astronauta | astronaut |
| astronauta soviética | cosmonaut |
| astronauta soviético | cosmonaut |
| astronave | spacecraft |
| astronomia | astronomy |
| astronomia de posição | astrometry |
| Astronomia extragaláctica | Extragalactic astronomy |
| astronomicamente | astronomically |
| Astronotus ocellatus | Oscar |
| astronáutica | astronautics |
| astronômico | astronomic |
| astroomia | star |
| Astrophytum | Astrophytum |
| Astroturfing | Astroturfing |
| Astrovirus | Astroviridae |
| Astrum Argentum | A∴A∴ |
| Astríaco | Austrian |
| Astrócito | Astrocyte |
| astróloga | astrologer |
| astrólogo | astrologer |
| astrónomo | astronomer |
| astrônoma | astronomer |
| astrônomo | astronomer |
| astrônomo . | astronomer |
| astucioso | clever |
| asturiano | Asturian |
| Asturo-leonês | Astur-Leonese language |
| astuto | perceptive |
| astutoe | clever |
| Astérix | Astérix |
| Astérix e o Caldeirão | Asterix and the Cauldron |
| Astérix e os Normandos | Asterix and the Normans |
| Astérix entre os Helvécios | Asterix in Switzerland |
| Astérix et les Vikings | Asterix and the Vikings |
| Astérix et Obélix contre César | Asterix and Obelix vs Caesar |
| Astérix Legionário | Asterix the Legionary |
| Astérix nos Jogos Olímpicos | Asterix at the Olympic Games |
| Astíanax | Astyanax |
| astúcia | cunning |
| Astúrias | Asturias |
| Asunción | Asunción Capital District |
| Asuras | Asura |
| ASUS | ASUS |
| ASUS Eee PC | ASUS Eee PC |
| Asynchronous Transfer Mode | Asynchronous Transfer Mode |
| Asyut | Asyut |
| At Play in the Fields of the Lord | At Play in the Fields of the Lord |
| At the BBC | At the Beeb |
| At the Drive-In | At the Drive-In |
| At the Gates | At the Gates |
| At the Mountains of Madness | At the Mountains of Madness |
| ata | minutes |
| Ata de Mediação | Act of Mediation |
| ataante | minuteseh |
| atabalhoadamente | pell-mell |
| Atabaque | Atabaque |
| atacadista | wholesaler |
| atacado | wholesale |
| atacado de pulmoeira | broken-winded |
