These are generally synonymous with matrilineage and patrilineage, respectively. One major difference was that individuals belonged to a matrilineage. The women of a matrilineage and their spouses and children live together in a longhouse. In contrast, within Ego's own matrilineage, differences of generation are noted. Consequently, men and women are forbidden to marry within their recent patrilineage and matrilineage. The basic kinship unit is the matrilineage; these are grouped into higher-level matrilineal sibs (matrisibs).