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English definition of “department”

department

noun [C]     /dɪˈpɑːtmənt/ ( written abbreviation dept)
MANAGEMENT one part of a large organization, such as a company or university, that deals with a particular area of work, business, study, etc.: run/manage a department the sales/human resources/finance department He was previously a lecturer in the pharmacy department of Queen's University. a department director/supervisor
COMMERCE one part of a large store that sells many different types of goods: the book/electrical/menswear department She has a Saturday job in the footwear department of a large city centre store.
GOVERNMENT one part of a government that is responsible for a particular part of its work: the Department of Education/Health/Justice
be sb's department informal to be something that a particular person knows a lot about or is responsible for: You'll need to ask Joe about that - it's more his departmant than mine.
→ See also bank trust department
(Definition of department noun from the Cambridge Business English Dictionary © Cambridge University Press)
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