Definition of ain't in English:



  • 1Am not; are not; is not.

    ‘if it ain't broke, don't fix it’
    • ‘We ain't running from nothing. We ain't worried about nothing.’
    • ‘The defense is doing all they can out there and we ain't matching them at all.’
    • ‘We ain’t tryin to be something we’re not.’
    • ‘I ain’t no Baby Boomer and will never buy products, services or opinions from people who approach me as such.’
    • ‘In ‘The Kid,’ the poet unveils the hidden core beneath a comfortable mask, telling about how the subject talks candidly about his father ‘sometimes when we ain't talking about baseball.’’
    1. 1.1 Has not; have not.
      ‘they ain't got nothing to say’
      • ‘Hey sis, I ain't forgotten about ya. I still love you.’
      • ‘Baseball's origins ain't found till they're found.’
      • ‘Bet she ain't ridden a bike in years.’
      • ‘Well, he's a man who loves being on the hills and what he ain't climbed ain't worth climbing.’
      • ‘He ain't won a fight in years.’


The use of ain't was widespread in the 18th century, typically as a contraction for am not. It is still perfectly normal in many dialects and informal speech in both Britain and North America. Today, however, it does not form part of standard English and should never be used in formal or written contexts. See also aren't