Kin Groups and Descent. Every Navajo belongs to one of sixty-four matrilineal clans, but is also said to be "born for" the clan of his or her father. Strict exogamy is practiced on both sides. Apart from the clans, there are no formally designated units of kinship in Navajo society; people are known by the household or extended family in which they reside rather than by membership in a named kin group. Property, like clan membership, is inherited mainly in the female line.
Kinship Terminology. Kin terms conform to the basic Iroquoian system.