Definition, Meaning & Synonyms

brother-in-law

noun
/ˈbrʌðər ɪn lɔː/
Definition
The brother of one’s spouse or the husband of one’s sibling.
Examples
  • My brother-in-law is coming over for dinner tonight.
  • She said her brother-in-law helped her fix the car.
  • We invited our brother-in-law to the family reunion.
Meaning
A brother-in-law can either be the sibling of your husband or wife or the person married to your sister or brother. He is a family member by marriage, not by blood.
Synonyms
  • relative
  • kin
  • in-law