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So instead of serving your family, friends and even co-workers outdated, calorie-laden foods, treat them to this new cuisine.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

Busy Bar started with a cardboard box with an LED strip as a stoplight to let coworkers know you’re occupied. — Nina Elder, Time, 15 Oct. 2026

Netflix cofounder Reed Hastings has acknowledged that disagreeing with a boss or coworker doesn’t come naturally to most people. — Preston Fore, Fortune, 15 Oct. 2026

Her coworkers have concerns about workplace safety, harassment, verbal abuse and intimidation, according to the news release. — Charlotte Observer, 14 Oct. 2026

When his young son is ostensibly abducted for ransom on Halloween night, Mark must confess his financial ruin to his therapist wife, Abigail (Washington), who has actually been having an ongoing affair with a coworker. — Max Gao, HollywoodReporter, 13 Oct. 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