| Arleux-en-Gohelle | Arleux-en-Gohelle |
| Arlington | Arlington |
| Arlon | Arlon |
| arma | weapon |
| arma a doppio taglio | double-edged sword |
| arma atomica | nuclear weapon |
| Arma automatica | Automatic firearm |
| arma biologica | biological weapon |
| arma chimica | chemical weapon |
| arma da fuoco | gun |
| arma da fuoco a ripetizione | repeater |
| arma di distruzione di massa | weapon of mass destruction |
| arma nucleare | nuclear weapon |
| Arma radiologica | Radiological weapon |
| Arma semi-automatica | Semi-automatic firearm |
| armadietto | locker |
| armadillo | armadillo |
| armadillo volgare | woodlouse |
| armadio | sideboard |
| armadio della biancheria | linen cupboard |
| Armageddon | Armageddon |
| Armageddon - Giudizio finale | Armageddon |
| Armagetron | Armagetron Advanced |
| Armagh | County Armagh |
| Armagnac | Armagnac |
| armaiolo | gunsmith |
| Armalcolite | Armalcolite |
| armamento | armament |
| Armand Fallières | Armand Fallières |
| Armand Gaétan Razafindratandra | Armand Razafindratandra |
| Armand Jacques Leroy de Saint-Arnaud | Jacques Leroy de Saint Arnaud |
| Armand Jean Le Bouthillier de Rancé | Armand Jean le Bouthillier de Rancé |
| Armand Peugeot | Armand Peugeot |
| Armand-Jean du Plessis de Richelieu | Cardinal Richelieu |
| Armando | Hermann |
| Armando Trovajoli | Armando Trovaioli |
| armare | arm |
| Armas Launis | Armas Launis |
| armata | armada |
| Armata Bianca | White movement |
| Armata Confederata del Tennessee | Army of Tennessee |
| Armata Confederata della Virginia Settentrionale | Army of Northern Virginia |
| Armata dei Volontari | Volunteer Army |
| Armata del Mississippi | Army of Mississippi |
| Armata del Potomac | Army of the Potomac |
| Armata della Virginia | Army of Virginia |
| Armata Halley | Halley Armada |
| Armata Rossa | Red Army |
| Armata Rossa Giapponese | Japanese Red Army |
| Armata Verde | Green armies |
| armato | armed |
| Armatocereus | Armatocereus |
| armatore | owner of a shipping company |
| armatrice | owner of a shipping company |
| armatura | armature |
