Meaning

• A socially, ethnically, or politically cohesive group of people.

• A society larger than a band but smaller than a state.

• A group of apes who live and work together.

• A hierarchal rank between family and genus.

• The collective noun for various animals.

• (stock breeding) A family of animals descended from some particular female progenitor, through the female line.

  "the Duchess tribe of shorthorns"

Meaning

• To distribute into tribes or classes; to categorize.