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[step-sis-ter] /ˈstɛpˌsɪs tər/
one's stepfather's or stepmother's daughter by a previous marriage.
Origin of stepsister
late Middle English
late Middle English word dating back to 1400-50; See origin at step-, sister Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for stepsister
Contemporary Examples
Historical Examples
  • For of course her stepsister was in a more serious condition than she had confessed to the other girl.

  • "I'm afraid I was looking at the horses," cut in her stepsister.

  • But while she was doing so her stepsister gave her a push, and she fell backward into the water.

    The Fairy Ring Various
  • Little Rosebud—that's what everybody called her—had a stepsister Maud.

    The Long Day Dorothy Richardson
  • She was the only relation I had, except my stepsister, and she was off travelling.

    The Prisoner Alice Brown
  • Her stepsister whispered to her mother when she saw her: ‘This girl is very much like our Conkiajgharuna!’

  • But rather than be thus trapped, she stepped over Tibe and pushed past her stepsister with an "I beg your pardon, dear."

  • Phyllis and I (Phil is my stepsister, though she is the most English creature alive) have no proper bath-room in our flat.

  • Your stepsister has long deserved death; tonight when she is asleep I will come and cut her head off.

    Grimms' Fairy Tales The Brothers Grimm
British Dictionary definitions for stepsister


a daughter of one's stepmother or stepfather by a union with someone other than one's father or mother respectively
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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