Definition of ain't in English:



  • 1Am not; are not; is not.

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


The use of ain't was widespread in the 18th century and is still perfectly normal in many dialects and informal contexts in both North America and Britain. Today, however, it does not form part of standard English and should not be used in formal contexts