Karachai-Cherkessia Syllabification: (Ka·ra·chai-Cher·kes·sia)Pronunciation: /ˌkarəˌCHī CHirˈkesēə/Definition of Karachai-Cherkessia an autonomous republic in the northern Caucasus, in southwestern Russia; population 427,100 (est. 2009); capital, Cherkessk. Official name Karachai-Cherkess Republic. Karachai-Cherkessia in other Oxford dictionaries Definition of Karachai-Cherkessia in the British & World English dictionary