1. divisions of a large organization, government, or institution that handle specific areas of work or responsibility
Usage: plural of department
2. sections of a store that sell different types of goods
Usage: retail context
3. academic divisions within a college or university that focus on specific subjects
Usage: educational context

Examples

• The company has separate departments for marketing, sales, and human resources.
• She works in one of the government departments that handles environmental policy.
• The store’s clothing departments are located on the second floor.
• Students can choose courses from different departments across the university.
• All departments must submit their budget proposals by Friday.
• The fire and police departments responded quickly to the emergency.
• He’s the head of the English department at the local college.