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sister - definition and synonyms

 
 
 
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noun [countable] sister pronunciation in British English /ˈsɪstə(r)/
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singularsister
pluralsisters
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  1. 1
    a daughter of your parents. A son of your parents is called your brother
    He has two brothers and two sisters.
    big/little sister (=an older or younger sister): She has to babysit for her little sister tonight.
    Synonyms and related words
  2. 2
    British a female nurse in charge of a hospital ward (=a room for people who are ill in a hospital)
    the day/night sister
    1. a.

      Sister

      British used for talking to a sister in a hospital
      My leg is still hurting me, Sister.

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