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Synonyms

stepbrother

American  
[step-bruhth-er] / ˈstɛpˌbrʌð ər /

noun

  1. one's stepfather's son or stepmother's son by a previous marriage.


stepbrother British  
/ ˈstɛpˌbrʌðə /

noun

  1. a son of one's stepmother or stepfather by a union with someone other than one's father or mother respectively

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of stepbrother

late Middle English word dating back to 1400–50; see origin at step-, brother

Compare meaning

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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.

“I was so excited to go. We told his stepbrother, who lives there, so he had cleared his schedule. I had to tell him that we can’t go anymore. We still haven’t gone.”

From MarketWatch • May 13, 2026

"I'm really happy that people have a place to do this," she told AFP between her table of refreshments and the green camping tent she shares with her mother, stepbrother, and his mother.

From Barron's • Mar. 2, 2026

The suspected shooter's mother, 39-year-old Jennifer Jacobs, who was also known as Jennifer Strang, and stepbrother, 11-year-old Emmett Jacobs were also killed, police confirmed.

From BBC • Feb. 14, 2026

Their stepbrother, Joel, had helped them get hired; he had worked there for about two years, family members said.

From Los Angeles Times • Jul. 8, 2025

Beatrice’s stepbrother rose stealthily, tugged off his new sneakers, and crept forward.

From "Hoot" by Carl Hiaasen

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