| Vocable | Translation |
| aratiuncula, aratiunculae [f.] A Noun | small estate of arable land |
| arator, aratoris [m.] C Noun | plowman, farmer (esp. farming on shares), cultiva… |
| aratrum, aratri [n.] O Noun | plow |
| aratum, arati [n.] O Noun | plowed field |
| Arbavalium, Arbavalii [n.] O Noun | Arbarvalia festival (pl.) |
| arbilla, arbillae [f.] A Noun | fat |
| arbiter, arbitri [m.] O Noun | eye-witness, on-looker, umpire, judge, arbiter, o… |
| arbiterium, arbiterii [n.] O Noun | arbitration, choice, judgment, decision, sentence… |
| arbitra, arbitrae [f.] A Noun | witness (female), judge, umpire, mistress |
| arbitratio, arbitrationis [f.] C Noun | arbitration, choice, judgment, capacity for decis… |
| arbitrator, arbitratoris [m.] C Noun | master, ruler, lord (Pentapylon Jovis arbitratori… |
| arbitratrix, arbitratricis [f.] C Noun | ruler (female), mistress |
| arbitratus, arbitratus [m.] U Noun | arbitration, choice, judgment, capacity for decis… |
| arbitrium, arbitrii [n.] O Noun | arbitration, choice, judgment, decision, sentence… |
| arbitrix, arbitricis [f.] C Noun | female arbitrator |
| arbitum, arbiti [n.] O Noun | abrutus (evergreen strawberry) tree/fruit, its le… |
| arborator, arboratoris [m.] C Noun | tree pruner |
| arboretum, arboreti [n.] O Noun | plantation of trees, place growing with trees |
| arboria, arboriae [f.] A Noun | black ivy (as growing on trees) |
| arbos, arbosis [f.] C Noun | tree, tree trunk, mast, oar, ship, gallows, spear… |
| arbuscula, arbusculae [f.] A Noun | small/young tree, sapling, bush, shrub, thing lik… |
| arbustulum, arbustuli [n.] O Noun | small orchard/grove of trees, small shrub |
| arbustum, arbusti [n.] O Noun | orchard, copse, plantation, grove of trees, shrub… |
| arbutum, arbuti [n.] O Noun | abrutus (evergreen strawberry) tree/fruit, its le… |
| arbutus, arbuti [f.] O Noun | arbutus, strawberry tree (Arbutus unedo) |
| arca, arcae [f.] A Noun | box, chest, strong-box, coffer, wealth, money, co… |
| arcanum, arcani [n.] O Noun | secret, mystery, secret/hidden place |
| arcanus, arcani [m.] O Noun | confidant, trustworthy friend, keeper of secrets |
| arcarius, arcarii [m.] O Noun | treasurer, controller of the public monies |
| arcatura, arcaturae [f.] A Noun | square landmark for surveyors |