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English definition of “dirty”

dirty

adjective
 
 
/ˈdɜːti/
unfair or dishonest: The rival company's dirty tricks campaign had cost it many millions of pounds. a dirty campaign/business dirty dealings/politics/tactics
ENVIRONMENT containing dangerous substances that may be harmful to the environment: dirty air dirty coal plants
do sb's dirty work to do something unpleasant or difficult for someone because they do not want to do it themselves: The building societies have done the chancellor's dirty work for him, by cutting the cost of a mortgage in anticipation of a base rate cut.
quick and dirty produced quickly and without spending much money: Developers make quick and dirty versions of the final product so that the client can interact with it and provide feedback.
(Definition of dirty from the Cambridge Business English Dictionary © Cambridge University Press)
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