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English definition of “deteriorate”

deteriorate

verb [I]     /dɪˈtɪəriəreɪt/
to become worse: If the economy continues to deteriorate, it will affect the firm's future performance. Sales will decrease as economic conditions deteriorate. Working conditions in the industry continue to deteriorate. deteriorate rapidly/sharply/significantly deteriorate steadily/slowly/gradually
(Definition of deteriorate verb from the Cambridge Business English Dictionary © Cambridge University Press)
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