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English definition of “chief operating officer”

chief operating officer

noun [C]
 
 
(also chief operations officer, abbreviation COO)
WORKPLACE, MANAGEMENT the person who is responsible for managing the usual activities of a company or organization: As chief operating officer he has responsibility for the day-to-day running of the organization, as well as overseeing special projects.
(Definition of chief operating officer from the Cambridge Business English Dictionary © Cambridge University Press)
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