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.
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
A co-worker, Sharam Muhamadi, originally from Iran, has also been convicted of facilitating travel for exploitation.
From BBC • Jun. 11, 2026
A co-worker had asked me to co-host a podcast with her; now that was on hold.
From Slate • Apr. 18, 2026
I would encourage you to get more clarity from your co-worker on the terms of their marriage, and exactly how open and honest they and their wife have been with each other.
From Los Angeles Times • Apr. 10, 2026
Her boss had turned down her request, but she had managed to quietly trade shifts with a co-worker.
From "The 57 Bus" by Dashka Slater
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.
