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.
Chukchi language
Chukchi is a Chukotko–Kamchatkan language spoken by the Chukchi people in the easternmost extremity of Siberia, mainly in Chukotka Autonomous Okrug. According to the Russian Census of 2002, about 7,000 of the 15,700 Chukchi people speak Chukchi; knowledge of the Chukchi language is decreasing, and most Chukchi now speak the Russian language (fewer than 100 report not speaking Russian at all).