Stepbrother

noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    The son of one's stepparent by a previous relationship.
  2. 2
    a brother who has only one parent in common with you wordnet
  3. 3
    The stepson of one's parent who is not one's half-brother.

Synonyms

All synonyms
auntblood brotherbrethrenbrotherbubbud

Example

More examples

"He has become a role model for his younger stepbrother."

Etymology

From step- + brother.

Related phrases

stepbrother-in-lawhalf brother

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.