Dictionary.com
Thesaurus.com
Synonyms

brother

American  
[bruhth-er, bruhth-ur] / ˈbrʌð ər, ˈbrʌðˈɜr /

noun

plural

brothers,

plural

brethren
  1. a male offspring having both parents in common with another offspring; a male sibling.

  2. Also called half brother.  a male offspring having only one parent in common with another offspring.

  3. a stepbrother.

  4. a male numbered among the same kinship group, nationality, ethnicity, profession, etc., as another; an associate; a fellow member, fellow countryman, fellow man, etc..

    a fraternity brother.

  5. Ecclesiastical.

    1. (often initial capital letter) a male numbered among the lay members of a religious organization that has a priesthood.

    2. a man who devotes himself to the duties of a religious order without taking holy orders, or while preparing for holy orders.

  6. brothers, all members of a particular racial or ethnic group, or of the human race in general.

    All men are brothers.

  7. Slang. fellow; buddy.

    Brother, can you spare a dime?

  8. Informal. a term used to refer to or address a fellow Black man; soul brother.


interjection

  1. Slang. (used to express disappointment, disgust, or surprise.)

brother British  
/ ˈbrʌðə /

noun

  1. a male person having the same parents as another person

  2. short for half-brother stepbrother

    1. a male person belonging to the same group, profession, nationality, trade union, etc, as another or others; fellow member

    2. ( as modifier )

      brother workers

  3. comrade; friend: used as a form of address

  4. Christianity

    1. a member of a male religious order who undertakes work for the order without actually being in holy orders

    2. a lay member of a male religious order

"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

interjection

  1. slang an exclamation of amazement, disgust, surprise, disappointment, etc

"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

Related Words

Brothers, brethren are plurals of brother. Brothers are kinsmen, sons of the same parents: My mother lives with my brothers. Brethren, now archaic in the foregoing sense, is used of male members of a congregation or of a fraternal organization: The brethren will meet at the church.

Other Word Forms

  • brotherless adjective
  • brotherlike adjective

Etymology

Origin of brother

First recorded before 1000; Middle English; Old English brōthor; cognate with Dutch broeder, German Bruder, Old Norse brōthir, Gothic brothar, Sanskrit bhrātṛ, Greek phrā́tēr, Latin frāter, Old Irish bráthair, Old Church Slavonic bratrŭ

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.

Despite a 73-run partnership between brothers Ben and Harry Manenti, Italy were always behind the rate and once they were removed, Scotland skittled the tail for a comfortable win.

From BBC

She sat next to her brother and sister.

From Los Angeles Times

A police officer told the court that forensic experts were unable to tell which of the brothers had been conclusively implicated.

From BBC

Early in 1977, when Shah Mohammed Reza Pahlavi still reigned, my mother was arrested during a peaceful demonstration in front of the National Assembly to demand the freedom of political prisoners, including her brother.

From The Wall Street Journal

The 26-year-old singer phoned her father when she later got to Abuja's Federal Medical Centre, Jabi - and he then called his brother, who lives in the capital, to go and check on her.

From BBC