department

noun

de·​part·​ment di-ˈpärt-mənt 

1

a

: a distinct sphere : province

that's not my department

b

: a category consisting especially of a measurable activity or attribute

lacking in the trustworthiness department

—Garrison Keillor

2

: a functional or territorial division: such as

a

: a major administrative division of a government

b

: a major territorial administrative subdivision

c

: a division of a college or school giving instruction in a particular subject

d

: a major division of a business

e

: a section of a department store handling a particular kind of merchandise

f

: a territorial subdivision made for the administration and training of military units

departmental

di-ˌpärt-ˈmen-tᵊl 

ˌdē-

adjective

departmentally

di-ˌpärt-ˈmen-tə-lē 

ˌdē-

adverb

Synonyms

• agency
• office
• bureau

Examples of department in a Sentence

Your letter has been forwarded to our sales department.

When you get to the hospital, go directly to the X-ray department.

the university's math and science departments

the department of modern languages

She joined the town's police department.

Recent Examples on the Web

The police department previously booked him into the San Bernardino County Sheriff’s Department High Desert Detention Center on a murder charge, which was dropped during his arraignment on Tuesday, according to ABC7. —Ingrid Vasquez, PEOPLE, 22 Oct. 2025

After the Supreme Court ruling, Holt said, the department changed its grooming policy to allow closely cropped beards. —Arkansas Online, 22 Oct. 2025

Police took the 18-year-old into custody at the same park the shooting happened, the department said in their statement. —Kirsten Fiscus, Nashville Tennessean, 21 Oct. 2025

Prospect also has civil servant members across a variety of government departments. —Jake Kanter, Deadline, 21 Oct. 2025

Word History

Etymology

French département, from Old French, act of dividing, from departir

First Known Use

1735, in the meaning defined at sense 1a

Phrases Containing department

• department store
• fire department
• purchasing department
• sub-department

Rhymes for department

• apartment
• compartment
• departement

Kids Definition

department

noun

de·​part·​ment di-ˈpärt-mənt 

1

: a distinct area of interest or activity

taking care of the cat is not my department

2

a

: a major administrative division of a government or business

b

: a major territorial administrative division

c

: a division of a college or school giving instruction in a particular subject

d

: a section of a department store

departmental

di-ˌpärt-ˈment-ᵊl 

ˌdē-

adjective

departmentally

-ᵊl-ē 

adverb