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Clipping of opposite number (for the first sense) and opponent/opposition (for the second).


  • (UK) IPA(key): /ˈɒ.pəʊ/
  • (US) IPA(key): /ˈɑ.poʊ/
  • (file)


oppo (countable and uncountable, plural oppos or oppoes)

  1. (countable, Britain, slang) A friend, associate or colleague. [from 20th c.]
    • 2016, Alan Moore, Jerusalem, Liveright 2016, p. 53:
      “It's all right, chaps, the decorator's come. This 'ere is me old ’oppo Ginger Vernall.”
    • 2012, Tony Orchard, Here's to our Far-Flung Empire
      'I suppose you're referring to Fluker,' I told him, and he looked at me in stunned amazement when I explained that he was one of my old oppoes.
  2. (uncountable, US, politics, informal) Research into one's opponent's family, friends, and past, which aims to uncover activities or interests which embarrass or discredit them.
    Synonym: oppo research