coworker

noun

co·​work·​er ˈkō-ˌwər-kər 

variants or co-worker

plural coworkers or co-workers

: one who works with another : a fellow worker

went out for drinks with her coworkers after work

So instead of serving your family, friends and even co-workers outdated, calorie-laden foods, treat them to this new cuisine.

—Charlotte Lyons

Synonyms of coworker

• colleague

Examples of coworker in a Sentence

my coworkers and I often send facetious e-mails to one another

Recent Examples on the Web

The other traces a friendship between two middle-aged, male coworkers, both of whom are exploring infidelity—one by having an affair with the other’s wife. —Judy Berman, Time, 26 Feb. 2026

Dozens of friends, family and coworkers gathered for a vigil at her home to celebrate her life. —Amanda Rosa, Miami Herald, 26 Feb. 2026

Meanwhile, at the commission offices in King of Prussia, Montgomery County, retired coworker, 73-year-old Ronald Duckett, pored over memories of his late dad. —Kim Hudson, CBS News, 25 Feb. 2026

Another protective order was filed by his ex-wife’s male coworker, whom police report Culleton was allegedly stalking and threatening. —Tim Dunn, Boston Herald, 25 Feb. 2026

Word History

First Known Use

1591, in the meaning defined above

Rhymes for coworker

• caseworker
• farmworker
• woodworker
• worker

Kids Definition

coworker

noun

co·​work·​er

ˈkō-ˌwər-kər

: a fellow worker