Here are some common family-related vocabulary words:

1. Father: The male parent.

2. Mother: The female parent.

3. Son: A male child of parents.

4. Daughter: A female child of parents.

5. Brother: A male sibling.

6. Sister: A female sibling.

7. Grandfather: The father of one’s parent.

8. Grandmother: The mother of one’s parent.

9. Uncle: The brother of one’s parent.

10. Aunt: The sister of one’s parent.

11. Cousin: The child of one’s uncle or aunt.