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foster brother

American  

noun

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


Etymology

Origin of foster brother

before 1000; Middle English; Old English fōster brōthor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Her foster brother, Theo, 25, is recording our conversation.

From The Wall Street Journal • Oct. 8, 2025

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 • Feb. 18, 2023

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 • May 13, 2022

A rancher’s son gets his foster brother in trouble with an unwed mother’s brothers.

From Los Angeles Times • Jul. 31, 2020

She knows I write to Mamie Rila and my foster brother, Shan, every month.

From "An Ember in the Ashes" by Sabaa Tahir

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