Meaning of “brother-in-law” in the English Dictionary

british dictionary

(Definition of “brother-in-law” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"brother-in-law" in American English

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brother-in-lawnoun [ C ]

us /ˈbrʌð·ər·ənˌlɔ/ plural brothers-in-law /ˈbrʌð·ərz·ənˌlɔ/

the husband of someone’s sister, or the brother of someone’s wife or husband, or the husband of the sister of someone’s wife or husband

(Definition of “brother-in-law” from the Cambridge Academic Content Dictionary © Cambridge University Press)