- an American Indian language family, widespread from Idaho to Central America and from the Rocky Mountains to the Pacific Ocean: this family includes Hopi, Ute, Shoshone, Comanche, Nahuatl, Tohono O'odham, Pima, and other languages.
- of or relating to Uto-Aztecan.
- a family of North and Central American Indian languages including Nahuatl, Shoshone, Pima, and Ute
- of or relating to this family of languages or the peoples speaking them
