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English definition of “improvement”

improvement

noun [C or U]     /ɪmˈpruːv.mənt/
B1 an occasion when something gets better or when you make it better: a slight improvement in the economy home improvements These white walls are a big improvement on that disgusting old wallpaper. He's been having treatment for two months now without any improvement.Becoming betterMaking things betterMaking progress and advancing
(Definition of improvement noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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