English

Definition of brother-in-law noun from the Oxford Advanced Learner's Dictionary

 

brother-in-law

 noun
noun
BrE
 
; NAmE
 
(pl. brothers-in-law) Marriage, Relations
 
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the brother of your husband or wife; your sister’s or brother's husband; the husband of your husband or wife’s sister compare sister-in-law See related entries: Marriage, Relations
See the Oxford Advanced American Dictionary entry: brother-in-law