plural of family room

A comfortable room in a dwelling, for frequent leisure use.

plural of foster family

plural of royal family

(genetics) A group of closely related genes that make similar gene products.

plural of gene family

(marketing, singular only) A size for a container of goods, among the largest sizes meant for sale to a householder consumer.

plural of nuclear family

(idiomatic) To be a characteristic feature that is observed in several generations of a family.

plural of family tree