A group of people made up of parents and their children.

家；家人。

A group of persons under one roof; a household.

同住者；家庭。

The children alone of such a group.

子女。

A body of persons descended from a common ancestor tribe; race; clan.

家庭；宗支；种族。

Noble lineage; ancestry.

名门世家；家世。

A group of things with some common characteristics.

族；类；系(有某些相同特性之物)。

A classification of plants or animals, larger than a genus but smaller than an order.

【生物】科(种植物的一类级；在分类中，居目之下、属之上)。请参见 taxonomy。