A chief city in the Moabite territory. In Jerome’s time it was called Areopolis. It is identified with Rabba, 31° 19' N, 35° 38' E, about 10 miles from the Dead Sea (Num. 21:15, 28; Isa. 15:1). In other passages the name Ar appears to include the land of the Moabites (Deut. 2:9,18,29).