- 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 also police department, the State Department
- 2 a section of a large store that sells a particular type of goods the children's department Idioms
nounjump to other results
to be something that someone is responsible for or knows a lot about Don't ask me about it—that's her department.
be somebody's department (informal)jump to other results