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brother–in–law

play
noun broth·er–in–law \ˈbrə-thər-ən-ˌlȯ, ˈbrəth-rən-, ˈbrə-thərn-\

Simple Definition of brother–in–law

  • : the brother of your husband or wife

  • : the husband of your sister

Full Definition of brother–in–law

plural broth·ers–in–law play \ˈbrə-thərz-ən-\

  1. 1 :  the brother of one's spouse

  2. 2 a :  the husband of one's sister b :  the husband of one's spouse's sister

14th Century

First Known Use of brother–in–law

14th century


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