A wall or fortress, a place to which Tiglath-pileser carried the Syrians captive after he had taken the city of Damascus (2 Kings 16:9; Amos 1:5; 9:7). Isaiah (22:6), who also was contemporary with these events, mentions it along with Elam. Some have supposed that Kir is a variant of Cush (Susiana), on the south of Elam.
Easton’s Bible Dictionary
Kir
Name meaninga city; wall; meeting
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.