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improvement

 
 
/ɪmˈpruːvmənt/ noun [C, U]

Definition

when something gets better or when you make it better: home improvements There's been a noticeable improvement in her work this term. He's a definite improvement on her last boyfriend. Sadly, her health has shown no improvement.
(Definition of improvement noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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