• Son of the same parents as another person.
  • A male having at least one parent in common with another (see half-brother, stepbrother).
  • A male fellow member of a religious community, church, trades union etc.
  • A black male.
  • Somebody, usually male, connected by a common cause or situation.
  • Someone who is a peer, whether male or female.
  • Someone who is a kinsman or shares the same patriarch.


  • To treat as a brother.


Broader meaning words


  • From Middle English brother, from Old English brōþor, from Proto-West Germanic *brōþer, from Proto-Germanic *brōþēr (compare North Frisian Bröðer, West Frisian broer, Dutch broeder, German Bruder, Danish broder, Norwegian bror), from Proto-Indo-European *bʰréh₂tēr (compare Irish bráthair, Welsh brawd, Latin frāter, Ancient Greek φράτηρ, Armenian եղբայր, Tocharian A pracar, Tocharian B procer, Russian брат, Lithuanian brolis, Persian برادر,Northern Kurdish bira, Sanskrit भ्रातृ). frater, friar, and pal.

Modern English dictionary

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