| Vocable | Translation |
| arcitectus, arcitecti [m.] O Noun | architect, master-builder, inventor, designer |
| Arcitenens, Arcitenentis [m.] M Noun | Apollo (who carries a bow), (constellation) Sagit… |
| arcosolium, arcosolii [n.] O Noun | arcosolium, arched recess/niche/cell as burial pl… |
| arcs, arcis [f.] M Noun | citadel, stronghold, height, the Capitoline hill … |
| arctophyllum, arctophylli [n.] O Noun | chervil |
| Arcturus, Arcturi [m.] O Noun | Acturus, brightest star in Bootes, the whole cons… |
| Arctus, Arcti [f.] O Noun | Big/Little Dipper/Bear, region of celestial pole,… |
| arcuarius, arcuarii [m.] O Noun | maker of bows |
| arcuatio, arcuationis [f.] C Noun | arch, structure consisting of arches (pl.), arcade |
| arcuatura, arcuaturae [f.] A Noun | arch, structure consisting of arches (pl.), arcade |
| arcuatus, arcuati [m.] O Noun | one having jaundice/the rainbow colored disease |
| arcubalista, arcubalistae [f.] A Noun | ballista furnished with a bow, spear-throwing war… |
| arcubalistus, arcubalisti [m.] O Noun | operator of an arcuballista - spear-throwing war … |
| arcuballista, arcuballistae [f.] A Noun | ballista furnished with a bow, spear-throwing war… |
| arcuballistus, arcuballisti [m.] O Noun | operator of an arcuballista - spear-throwing war … |
| arcula, arculae [f.] A Noun | small box/chest/casket, small jewel/perfume/money… |
| arcularius, arcularii [m.] O Noun | maker of small chests/boxes/jewel caskets |
| arculatum, arculati [n.] O Noun | sacrificial cakes (pl.) made of flour |
| arculum, arculi [n.] O Noun | roll/hoop placed on the head for carrying vessels… |
| arcuma, arcumae [f.] A Noun | kind of covered carriage |
| arcus, arcus [m.] U Noun | bow, arc, coil, arch, rainbow, anything arched or… |
| ardalio, ardalionis [m.] C Noun | busybody, fusser |
| ardea, ardeae [f.] A Noun | heron |
| ardelio, ardelionis [m.] C Noun | busybody |
| ardeola, ardeolae [f.] A Noun | heron (small?) |
| ardiola, ardiolae [f.] A Noun | heron (small?) |
| ardor, ardoris [m.] C Noun | fire, flame, heat, brightness, flash, gleam or co… |
| arduitas, arduitatis [f.] C Noun | steepness |
| arduum, ardui [n.] O Noun | steep/high place, heights, elevation, arduous/dif… |
| area, areae [f.] A Noun | area |