General terms:
* Relatives
* Kin
* Blood (informal, can be used to emphasize shared ancestry)
* Household (refers to those living in the same home)
* Clan (for large extended families)
More specific terms:
* Immediate family (parents, siblings, children)
* Extended family (aunts, uncles, cousins, grandparents)
* In-laws (relatives by marriage)
* Step-family (relatives through remarriage)
Informal terms:
* Folks
* Family tree
* Loved ones
* My people
The best word to use will depend on the specific situation and the intended meaning.