Meaning of sibling-in-law | Babel Free

Definitions

1. A relative of one's generation, separated by one degree of marriage:
2. The sibling of one's spouse.
3. The spouse of one's sibling.
4. Co-sibling-in-law: A relative of one's generation, separated by two degrees of marriage:
   uncommon
5. The spouse of the sibling of one's spouse.
   uncommon
6. The sibling of the spouse of one's sibling.
   uncommon

CEFR level