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So instead of serving your family, friends and even co-workers outdated, calorie-laden foods, treat them to this new cuisine.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

Besides, as my friends at them noted, the Condé Nast cafeteria—where my coworkers regularly eat mid sushi—plays a pivotal role on this show. —Emma Specter, Vogue, 22 Jan. 2026

If a message claims to come from a coworker, vendor or organization, reach out through a separate channel before scanning. —Kurt Knutsson, FOXNews.com, 21 Jan. 2026

Even in offices where time off is technically encouraged, employees may feel pressure to match coworkers who rarely take breaks. —Joshua Sidorowicz, CBS News, 21 Jan. 2026

That morning Spencer had failed to show up for work, and his coworkers and a friend who had gone to check on the couple called 911. —Samira Asma-Sadeque, PEOPLE, 20 Jan. 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