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So instead of serving your family, friends and even co-workers outdated, calorie-laden foods, treat them to this new cuisine.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

Authorities said the American Airlines flight attendant was on a layover in Medellín, Colombia, and went out with a coworker and disappeared. — Marvin Hurst, CBS News, 6 Aug. 2026

Getting pushed out in the merger is old boss Terrence (Elijah Cook), who commiserates at a going-away party that night with Aubrey (Claudia Doumit), the coworker David has a potential romantic frisson with. — Dennis Harvey, Variety, 5 Aug. 2026

Argenis Torres Rosales was visiting the Wilson Creek reservation area in the national forest — about 90 minutes north of Charlotte — with his coworkers on Sunday, July 26, according to his aunt, Wuendy Rosales, of Hickory. — Diamy Wang, Charlotte Observer, 4 Aug. 2026

Several of my OutKick coworkers have even documented a few of these cases. — Austin Perry Outkick, FOXNews.com, 4 Aug. 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