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So instead of serving your family, friends and even co-workers outdated, calorie-laden foods, treat them to this new cuisine.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

During that difficult time, Hialeah turned to the Doral Police Department’s therapy dog, Ginger, for support in comforting grieving family members, friends and coworkers. — Verónica Egui Brito july 15, Miami Herald, 15 July 2026

For some workers, letting AI write a message to a coworker may seem like a harmless time-saving hack, while others view it as inconsiderate or rude. — Sophie Caldwell, CNBC, 15 July 2026

For Isnada Unalus, a Haitian immigrant who has lived in Bridgeport for the past decade and works in healthcare, the possible loss of TPS represents fear for friends and coworkers who have spent years building lives in Connecticut. — Reginald David, Hartford Courant, 11 July 2026

One of my coworkers swears by it for fitness classes and easy outfits. — Jeaneen Russell, PEOPLE, 11 July 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