step-sister meaning, step-sister definition | English Cobuild dictionary



  ( stepsisters    plural  ) , step-sister          Someone's stepsister is the daughter of their stepfather or stepmother.      n-count   oft poss N  
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"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"