Karachai Syllabification: (Ka·ra·chai)Pronunciation: /ˌkarəˈCHī/Definition of Karachai noun (plural same or Karachais) 1a member of an indigenous people living in Karachai-Cherkessia. 2 (also Karachai-Balkar) the Turkic language of the Karachai. adjective relating to the Karachai or their language. Karachai in other Oxford dictionaries Definition of Karachai in the British & World English dictionary