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Related to foster-brother: Foster son
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.foster-brother - your foster brother is a male who is not a son of your parents but who is raised by your parents
male person, male - a person who belongs to the sex that cannot have babies
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


(ˈfostə) verb
1. to look after for a period of time; to bring up a child that is not one's own. She fostered the children for several months.
2. to encourage or give help to (ideas etc). She fostered the child's talents.
ˈfoster-brother, ˈfoster-sister nouns
a child that has been fostered in another child's family.
ˈfoster-child noun
a child fostered by a family.
ˈfoster-parent (ˈfoster-father/ˈfoster-mother) noun
a person who looks after a child not his or her own.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
What could the captain do, to reward the youthful hope of this venerable pair, and comfort him for the loss of his foster-brother, the horse?
"Now you shall see how well we agree together"; and while she combed little Gerda's hair, the child forgot her foster-brother Kay more and more, for the old woman understood magic; but she was no evil being, she only practised witchcraft a little for her own private amusement, and now she wanted very much to keep little Gerda.
"You would scarce credit it, and yet it is sooth that when I was taken at Poictiers it was all that my wife and foster-brother could do to raise the money from them for my ransom.