foster brother

American  

noun

1. a boy brought up with another child of different parents.

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Etymology

Origin of foster brother

before 1000; Middle English; Old English fōster brōthor

Example Sentences

He extends the love he didn’t have as a child to his foster brother.

From Seattle Times

A woman who passed up going to university to care for her autistic foster brother has described how he inspired her to set up her own behavioural therapy centre.

From BBC

Williams has a 2-year-old adopted sister Ryleigh who went through the foster care system, “so I’m a foster brother,” Williams said.

From Seattle Times

Partly, their suspicions stemmed from his strange behavior; one foster brother heard C.J. saying that his classmates were robots intent on hurting him.

From Seattle Times

And one of his foster brothers later told investigators that Lofton had complained that there were kids in his class at school that were robots who were trying to kill him, the report said.

From Seattle Times