Synonyms of brother in English:

brother

noun

  • 1 she had a younger brother named William
    male sibling
    informal bro
  • 2 they were brothers in crime
    colleague, associate, companion, partner, comrade, comrade-in-arms, co-worker, fellow, friend; Frenchconfrère
    informal pal, chum
    British informal mate
    North American informal bro
    archaic compeer
  • 3 a brother of the Order
    monk, cleric, friar, religious, regular, monastic, contemplative
  • Word links

    fraternal relating to a brother
    fratricide killing of one's brother or sister

    Definition of brother in:

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    Word of the day neoteny
    Pronunciation: niːˈɒt(ə)ni
    noun
    retention of juvenile features in the adult animal