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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


(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.
References in classic literature ?
Linton was extremely reluctant to consent, but I pleaded eloquently for the friendless condition in which he lay; and I said my old master and foster-brother had a claim on my services as strong as his own.
The princess was delighted to see her foster-brother again, and after some conversation she confided to him all her history and the cause of her imprisonment.
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?