Comanche /kəˈmænt͡ʃi/noun 3adjective 1forms 1 noun3 •A member of a Native American ethnic group residing especially in Texas and Oklahoma. •A military helicopter, the RAH-66 Comanche. •A light single-engine aircraft, the Piper PA-24 Comanche. adjective1 •Of or pertaining to the Comanche people, culture, or language. formsComanches