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English definition of “deflate”

deflate

verb
 
 
/dɪˈfleɪt/
LOSE AIR [I, T] to let all the air or gas out of something, or to become emptied of air or gas: to deflate a balloon/tyreBecoming and making smaller or lessBecoming and making less strong
CONFIDENCE [T] to make someone lose confidence or feel less important: [often passive] They were totally deflated by losing the match.Making people sad, shocked and upset
(Definition of deflate from the Cambridge Learners Dictionary © Cambridge University Press)
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