sister-in-law
noun/ˈsɪstər ɪn lɔː/
/ˈsɪstər ɪn lɔː/
(plural sisters-in-law)
- the sister of your husband or wife; your brother’s or sister's wife; the wife of your husband's or wife’s brother or sister compare brother-in-lawTopics Family and relationshipsb1
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sister-in-law