- A principal administrative division of a government.The department of public works.
- A division of a business specializing in a particular product or service.The personnel department.
- A division of a school or college dealing with a particular field of knowledge.The physics department.
An example of a department is a faculty group, building and program dedicated to the subject of English in a college.
The home furnishings department.
Getting the kids to bed is my department.
The police department, the accounting department, the history department.
Rewriting is his department.