Definition of sister-in-law in English:


Line breaks: sister-in-law

noun (plural sisters-in-law)

  • 1The sister of one’s wife or husband.
  • 1.1The wife of one’s brother or brother-in-law.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody