sister–in–law

play
noun sis·ter–in–law \ˈsi-st(ə-)rən-ˌlȯ, -tərn-ˌlȯ\

Definition of sister–in–law

plural

sisters–in–law

play \ˈsi-stər-zən-ˌlȯ\
  1. 1 :  the sister of one's spouse

  2. 2a :  the wife of one's siblingb :  the wife of one's spouse's sibling

15th Century

First Known Use of sister–in–law

15th century


SISTER–IN–LAW Defined for English Language Learners

sister–in–law

play
noun sis·ter–in–law \ˈsi-st(ə-)rən-ˌlȯ, -tərn-ˌlȯ\

Definition of sister–in–law for English Language Learners

  • : the sister of your husband or wife

  • : the wife of your brother


SISTER–IN–LAW Defined for Kids

sister–in–law

play
noun sis·ter–in–law \ˈsi-stər-ən-ˌlȯ\

Definition of sister–in–law for Students

plural

sisters–in–law

  1. 1 :  the sister of someone's husband or wife

  2. 2 :  the wife of someone's brother


Learn More about sister–in–law


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