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  • noun

Synonyms for foster-sister

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

References in periodicals archive ?
Chris was fostered by Neville and Margaret Brunskill at the age of six, and quickly became inseparable from his foster-sister Sam, now 21.
STEPHANIE MATHEWS, Nathan's foster-sister, lived with Nathan and their foster family until she moved out into her own flat in Daimler Green, Coventry.
In the months before her death, her schoolwork had improved, and she made a close circle of friends, according to a fellow pupil at Helenswood School, which she attended with her foster-sister Lottie.
Sensation and Civility: Protecting the Confederation Family in Isabella Valancy Crawford's Winona; Or, the Foster-Sisters.