co-worker
Britishnoun
Explanation
A co-worker is someone you work with. Your ice cream shop co-worker might scoop the ice cream while you're on milkshake duty. When you work with someone, that person is your co-worker. The word implies that you work side-by-side — you wouldn't usually refer to your boss as your co-worker. If you work in an office, your co-workers probably have cubicles and computers that are similar to yours, and if you work on a farm your co-workers are right there beside you weeding the beets or watering the tomatoes. The prefix co in co-worker means "together" or "mutually."
Vocabulary lists containing co-worker
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Last week, my co-worker told me Mary says that I never answer her and that I’ve never explained why I reject certain tasks she does.
From MarketWatch ● Aug. 29, 2026
“You cannot, you cannot process that,” an emotional co-worker, Marilyn Gwynn, told KSBW.
From Los Angeles Times ● Jul. 23, 2026
The biggest appeal of these lowbrow collections—one reader recalls a co-worker telling his kids that souvenir was French for crap—are instant memories.
From The Wall Street Journal ● Jul. 1, 2026
A former co-worker saw one of his posts and told a manager at her new company that Myhan would be a fit for a coming opening.
From The Wall Street Journal ● Jun. 18, 2026
The spontaneous decision to argue with that same co-worker is made unconsciously—by a different part of the brain and motivated by a different part of your personality.
From "Blink" by Malcolm Gladwell
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
