foster brother
Americannoun
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
And during Bond’s face-to-face interrogation of his erstwhile foster brother turned international supervillain as head of SPECTRE, Christoph Waltz’s Blofeld dismisses them both as just two old men.
From Los Angeles Times • Sep. 28, 2021
As Victoria asks Amanda’s foster brother for help with her charitable foundation, Emily seizes an opportunity to settle a score with someone from her past.
From Seattle Times • Mar. 20, 2013
Unless they were using him as target practice, they didn’t want to be associated with their foster brother, and that was all right with Danny.
From "The Way to Rio Luna" by Zoraida Cordova
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.