foster

/ˈfɒstər/ adjective

Definition

foster home/mother/parent, etc › the home where a child who is fostered lives, or the person or people who foster a child

foster child/daughter/son, etc › a child who is fostered

(Definition of foster adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

to refuse to accept something or someone because you feel that they are not worth having

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