It's important to note that "kazoku" is a broader term than "family" in English. It refers to all the people in a household, including parents, children, siblings, and extended family members.
Here are some other words related to family in Japanese:
* 両親 (ryōshin): parents (father and mother)
* 父親 (chichioya): father
* 母親 (hahaoya): mother
* 子供 (kodomo): child (children)
* 兄弟 (kyōdai): siblings (brother and sister)
* 祖父 (sofu): grandfather
* 祖母 (sobō): grandmother
* 孫 (mago): grandchild
The best way to choose the right word will depend on the specific context you are using it in.