| AR | a state in south central United States |
|---|---|
| AR | a unit of surface area equal to 100 square meters |
| AR | a colorless and odorless inert gas |
| AR | macaws |
| AR | a constellation in the southern hemisphere near Telescopium and Norma |
| AR | a spirited graceful and intelligent riding horse native to Arabia |
| AR | an Arabic speaking person who lives in Arabia or North Africa |
| AR | the leader of an Arab village or family |
| AR | an international organization of independent Arab states formed in 1945 to promote cultural and economic and military and political and social cooperation |
| AR | a republic in northeastern Africa known as the United Arab Republic until 1971 |
| AR | tension between Arabs and Israeli erupted into a brief war in June 1967 |
| AR | Egypt and Syria attacked Israel in October 1973 (on Yom Kippur) |