General synonyms:
* Kin: Refers to blood relatives.
* Relatives: A broader term encompassing all people related by blood, marriage, or adoption.
* Household: Refers to people living together in a home.
* Clan: A group of people related by blood or marriage, often with a common ancestor.
* Lineage: A line of descent from an ancestor.
* Kith and kin: A poetic phrase that refers to close friends and relatives.
More specific synonyms:
* Nuclear family: Parents and their children.
* Extended family: A family that includes relatives beyond parents and children, such as grandparents, aunts, uncles, and cousins.
* Chosen family: A group of people who are not related by blood, but who have chosen to be family to each other.
The best synonym for "family" will depend on the specific situation you are trying to describe.