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⇱ foster sister - WordReference.com Dictionary of English

- See Also:
- - foster
  - foster brother
  - foster care
  - foster child
  - Foster City
  - foster daughter
  - foster father
  - foster home
  - foster mother
  - foster parent
  - foster sister
  - foster son
  - fosterage
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  - fou
  - Foucault
  - Foucault pendulum
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foster sister

in Spanish | in French | in Italian | English synonyms | English Usage | Conjugator | in context | images

WordReference Random House Unabridged Dictionary of American English © 2026

fos′ter sis′ter,

Sociologya girl brought up with another child of different parents.

1640–50

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