Chechens
The main language of the Chechen people is Chechen. Chechen belongs to the family of Nakh languages (Northeast Caucasian languages). Literary Chechen is based on the central lowland dialect. Other related languages include Ingush, which has speakers in the neighbouring Ingushetia, and Batsbi, which is the language of the people in the adjoining part of Georgia. At various times in their history, Chechens used Georgian, Arabic and Latin alphabets; as of 2008, the official one is now the Cyrillic script of Russia.
Chuvash language
Chuvash is the native language of the Chuvash people and an official language of Chuvashia. It is spoken by 1,640,000 persons in Russia and another 34,000 in other countries. 86% of ethnic Chuvash and 8% of the people of other ethnicities living in Chuvashia claimed knowledge of Chuvash language during the 2002 census. Despite that, and although Chuvash is taught at schools and sometimes used in the media, it is considered endangered, because Russian dominates in most spheres of life, and few children learning the language are likely to become active users.