Did you know?

Click any word in a definition or example to find the entry for that word

brother - definition and synonyms

 
 
 
Close
What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close
ThesaurusThesaurus
Thesaurus diagram

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
noun [countable]     brother pronunciation in American English
/ˈbrʌðər/
Word Forms
Close
singularbrother
pluralbrothers
  1. 1
    a boy or man who has the same parents as you

    My brother’s name is Brian.

    Do you have any brothers and sisters?

    his younger/older/little brother

    Synonyms and related words
  2. 2
    American spoken used for talking in a friendly way to a man
  3. 3
    a man who is connected to you in some way and who you have feelings of friendship toward

    All men are my brothers.

    We pray for all our brothers and sisters abroad.

  4. 4

    brother

    or

    Brother

    a man who is a member of a religious group, especially a monk

    Brother David

  5. 5
    used by men who belong to a labor union for talking to or referring to other men who are members
BuzzWord

deep learning

a form of machine learning which incorporates the use of neural networks

BuzzWord Article

Open Dictionary

snap election

a general election … that is called earlier than expected

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play