stepsister

2 definitions found

stepsister - Collaborative International Dictionary of English v.0.48 :

  Stepsister \Step"sis`ter\, n.
     A daughter of one's stepfather or stepmother by a former
     marriage.
     [1913 Webster]

stepsister - WordNet (r) 2.1 (2005) :

  stepsister
      n 1: a sister who has only one parent in common with you [syn:
           half sister, half-sister, stepsister]