| Vocable | Translation |
| asinus ad lyram Phrase | an ass to the lyre |
| asinus asinum fricat Phrase | the jackass rubs the jackass |
| assecuratus non quaerit lucrum sed agit ne in damno sit Phrase | the assured does not seek profit but makes [it hi… |
| astra inclinant, sed non obligant Phrase | the stars incline us, they do not bind us |
| at the seventh hour Phrase | still in translation |
| at your bakery Phrase | still in translation |
| attulisses Phrase | still in translation |
| auctores varii Phrase | various authors |
| auctoritas Phrase | authority |
| auctoritas non veritas facit legem Phrase | authority, not truth, makes law |
| Auctoritas non veritas facit legem Phrase | still in translation |
| audacia pro muro et scuto opus Phrase | boldness is our wall, action is our shield |
| audacter calumniare, semper aliquid haeret Phrase | slander boldly, something always sticks |
| audax at fidelis Phrase | bold but faithful |
| audeamus Phrase | let us dare |
| audemus jura nostra defendere Phrase | we dare to defend our rights |
| audentes fortuna iuvat Phrase | fortune favors the bold |
| audi alteram partem Phrase | hear the other side |
| audi, vide, tace Phrase | hear, see, be silent |
| audio hostem Phrase | I hear the enemy |
| audis puerum canere Phrase | still in translation |
| Audntia et disciplina Phrase | still in translation |
| aurea mediocritas Phrase | golden mean |
| auri sacra fames Phrase | accursed hunger for gold |
| auribus teneo lupum Phrase | I hold a wolf by the ears |
| Auriga multos magnos equos domat. Phrase | still in translation |
| Aurito jaret Audosum Phrase | still in translation |
| aurora australis Phrase | southern dawn |
| aurora borealis Phrase | northern dawn |
| aurēs ab arboribus līberāvit Phrase | still in translation |