from The Century Dictionary and Cyclopedia

  • n. A female child, not a sister, reared with another child by the same person.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. your foster sister is a female who is not a daughter of your parents but who is raised by your parents


Sorry, no etymologies found.


  • A DAY BEFORE I was to depart to begin my studies at the University of Tiberium, my foster-sister Edmée was nowhere to be found in the manor of Rocaille, but I knew her habits well enough to guess where she had gone, and I rode out in search of her.

    Songs of Love & Death

  • The castratos then set before them all manner rich meats and they ate, Daulat Khatun feeding her foster-sister by mouthfuls,453 till she was satisfied; when she called for divers kinds of sweetmeats, and when the neutrals brought them, they ate what they would of them and washed their hands.

    The Book of The Thousand Nights And A Night

  • Jinniyah the foster-sister could have come to her and saved her from old maidenhood.

    The Book of The Thousand Nights And A Night

  • A Mahometan is not allowed to marry his sister-in-law, his niece, his foster-sister, or his daughter-in-law brought up under the care of his wife.

    A Philosophical Dictionary

  • She was willing to believe that he had never spoken a word of forbidden love to his gorgeous foster-sister.

    The Sheikh's Innocent Bride

  • AndShahir's religion forbade the marriage of a man to his foster-sister.

    The Sheikh's Innocent Bride

  • Went to a birthday party for a former foster-sister of mine, Princess Poopypants.

    badbadzoot Diary Entry

  • One day, however, when she was gathering herbs, he came upon her suddenly, before she had time to escape, though as she had stained her face and hands brown, and covered her beautiful hair with a scarlet cap, he did not guess her to be his foster-sister.

    The Olive Fairy Book

  • He lives with his foster-sister in a little wing in the yard.

    The Man Who Was Afraid

  • He has but one daughter, and you ought to marry that daughter, and that she is your godsister and foster-sister — no matter!

    The Man Who Was Afraid


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