[khan] n [ME caan, fr. MF, of Turkic origin; akin to Turk han prince] (15c) 1: a medieval sovereign of China and ruler over the Turkish, Tatar, and Mongol tribes
2: a local chieftain or man of rank in some countries of central Asia
[2]khan n [Ar khan] (1614): a caravansary or rest house in some Asian countries