Source : Webster's Revised Unabridged Dictionary (1913)

Navajoes \Na"va*joes\, n. pl.; sing. {Navajo}. (Ethnol.)
   A tribe of Indians inhabiting New Mexico and Arizona, allied
   to the Apaches. They are now largely engaged in agriculture.

Source : WordNet®

Navajo
     n 1: a member of an Athapaskan people that migrated to Arizona
          and New Mexico and Utah [syn: {Navaho}]
     2: the Athapaskan language spoken by the Navaho people [syn: {Navaho}]