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brother–in–law
noun broth·er–in–law \ˈbrə-thər-ən-ˌlȯ, ˈbrəth-rən-, ˈbrə-thərn-\
: the brother of your husband or wife
: the husband of your sister
plural broth·ers–in–law \ˈbrə-thərz-ən-\
Full Definition of BROTHER-IN-LAW
1
: the brother of one's spouse
2
a : the husband of one's sister b : the husband of one's spouse's sister
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First Known Use of BROTHER-IN-LAW
14th century
BROTHER-IN-LAW Defined for Kids
brother–in–law
noun broth·er–in–law \ˈbrə-thər-ən-ˌlȯ\
plural broth·ers–in–law
Definition of BROTHER-IN-LAW for Kids
1
: the brother of a person's husband or wife
2
: the husband of a person's sister
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