- 1
a section of a large organization such as a government, business, university, etc. the Department of Defense the Treasury Department a government/university, etc. department the marketing/sales, etc. department the English department see police department, State Department
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- 2a section of a large store that sells a particular type of goods the children's department Idioms
to be something that someone is responsible for or knows a lot about Don't ask me about it—that's her department.
Check pronunciation: department