Definition of SISTER

noun : SISTER

Source: WordNet 3.1

  • 1. (

    ) a female person who has the same parents as another person; "my sister married a musician" ;

  • 2. (

    ) (Roman Catholic Church) a title given to a nun (and used as a form of address); "the Sisters taught her to love God" ;

  • 3. (

    ) a female person who is a fellow member of a sorority or labor union or other group; "none of her sisters would betray her" ;

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