The Arapaho (Arapahoe) language (in Arapaho: Hinóno'eitíít ) is one of the Plains Algonquian languages, closely related to Gros Ventre and other Arapahoan languages. It is spoken by the Arapaho people of Wyoming and Oklahoma. Speakers of Arapaho primarily live on the Wind River Reservation in Wyoming, though some have affiliation with the Cheyenne people living in western Oklahoma.