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English definition of “clean-up”

clean-up

noun [C] (also cleanup)    
ENVIRONMENT an act of removing harmful substances or chemicals from a place or the environment: Over $100 million was allocated for the cleanup of hazardous chemicals and radioactive waste.
WORKPLACE an act of improving a company or system by removing people and stopping activities that are dishonest or causing problems: The cleanup involved foreclosing on thousands of problem loans and selling the properties that secured them.
(Definition of clean-up noun from the Cambridge Business English Dictionary © Cambridge University Press)
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