| amphiteathre | Amfiteatr |
| amino acid | aminokwas |
| amnesty | amnestia |
| amnesia | amnezja |
| ammonia | amoniak |
| amplitude | amplituda |
| ampoule | ampułka |
| amputation | amputacja |
| amulet | amulet |
| illiterate | analfabeta |
| analysis | analiza |
| market analysis | analiza rynku |
| analyse | analizować |
| anarchy | anarchia |
| anatomy | anatomia |
| ancecdote | anegdota |
| annex | aneks |
| anaemia | anemia |
| employ | angażować (kogoś) |
| tonsillitis | angina |
| neither, nor | ani |
| animation | animacja |
| angel | anioł |
| inquiry | ankieta |
| anonymous | anonim |
| anorexia | anorekcja |
| antenna | antena |
| antidote | antidotum |
| antibiotic | antybiotyk |
| conraception | antykoncepcja |
| antelope | antylopa |
| annul | anulować |
| braces | aparat na zęby |
| apartmen | apartament |
| appeal | apel |
| application | aplikacja |
| apocalypse | apokalipsa |
| fetch | aport |
| first-aid kit | apteczka |
| chemist's | apteka |
| watermelon | arbuz |
