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English definition of “clean”

clean

adjective     /kliːn/
honest and fair , or showing that you have done nothing illegal or morally wrong : a clean record/report/license Job applicants must have a clean commercial driver's license . He said the campaign's priorities will be " education and clean government ."
ENVIRONMENT free of, or producing no harmful chemicals or substances : clean energy/fuel/technology clean energy from renewable sources such as solar and wind power clean air / water / soil
have clean hands informal to have never been involved in a dishonest or illegal activity : An audit proved that neither company had clean hands when it came to reporting profits .
(Definition of clean adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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