A unit of sociopolitical organization consisting of a number of families, clans, or other groups who share a common ancestry and culture and among whom leadership is typically neither formalized nor permanent, Any of the three divisions of the ancient Romans, namely, the Latin, Sabine, and Etruscan, Specifically, a division of a barbarous race of people, usually distinguishable in some way from their congeners, united into a community under a recognized head or chief, ruling either independently or subordinately, transitive verb_ rare To distribute into tribes or classes