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Definitions of Brother

  1. (noun) A male sibling.
  2. (noun) A male member of a group such as a fraternity or religion.

Examples of Brother

Brother Pronunciation

Pronunciation Usage Guide

Syllabification: broth·er

Audio Pronunciation

– American English
– British English

Phonetic Spelling

  • American English – /brUHTH-uhr/
  • British English – /brUHTH-uh/

International Phonetic Alphabet

  • American English – /ˈbrəðər/
  • British English – /ˈbrʌðə/

Usage Notes

  • Plural: brothers
  • An individual’s older brother is called a big brother and a younger brother is called a little brother, and sibling’s husband is a brother-in-law.
  • An individual’s brother with only one parent in common is a half brother (half-brother) or step brother (step-brother).
  • The female equivalent of brother is a sister.
  • An individual’s parent’s brother is an uncle.
  • Also called: male sibling
  • Informally called: bro
  • The term (adjective) fraternal means relating to brothers or (adjective) brotherly tendencies, and bothers share a (noun) brotherhood.

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Additional Information

Related Terms

Cite the Definition of Brother

ASA – American Sociological Association (5th edition)

Bell, Kenton, ed. 2014. “brother.” In Open Education Sociology Dictionary. Retrieved May 23, 2024 (https://sociologydictionary.org/brother/).

APA – American Psychological Association (6th edition)

brother. (2014). In K. Bell (Ed.), Open education sociology dictionary. Retrieved from https://sociologydictionary.org/brother/

Chicago/Turabian: Author-Date – Chicago Manual of Style (16th edition)

Bell, Kenton, ed. 2014. “brother.” In Open Education Sociology Dictionary. Accessed May 23, 2024. https://sociologydictionary.org/brother/.

MLA – Modern Language Association (7th edition)

“brother.” Open Education Sociology Dictionary. Ed. Kenton Bell. 2014. Web. 23 May. 2024. <https://sociologydictionary.org/brother/>.