Chechen language
Chechen ( , ) is a Northeast Caucasian language spoken by more than 1.4 million people, mostly in the Chechen Republic and by members of the Chechen diaspora throughout Russia, Jordan, Central Asia (mainly Kazakhstan and Kyrgyzstan), and Georgia.
Ingush language
Ingush and Chechen, together with Bats, constitute the Nakh branch of the Northeast Caucasian language family. There is pervasive passive bilingualism between Ingush and Chechen.