coincidence
Americannoun
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a striking occurrence of two or more events at one time apparently by mere chance.
Our meeting in Venice was pure coincidence.
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the condition or fact of coinciding.
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an instance of this.
noun
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a chance occurrence of events remarkable either for being simultaneous or for apparently being connected
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the fact, condition, or state of coinciding
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(modifier) electronics of or relating to a circuit that produces an output pulse only when both its input terminals receive pulses within a specified interval Compare anticoincidence
coincidence gate
Other Word Forms
Etymology
Origin of coincidence
First recorded in 1595–1605; coincid(ent) + -ence
Explanation
People love to talk about strange coincidences––like you and your mother having the same birthday, or two unrelated families named "The Martins" living next door to each other. A coincidence is something that's not planned or arranged but seems like it is. Technically, a coincidence is an occurrence of events that happen at the same time by total accident––like you and a kid from your class at school both visit the Grand Canyon on the same day. Weird. If some guy is stalking you, always running into you wherever you go, this is not a coincidence. That guy has memorized your schedule.
Vocabulary lists containing coincidence
Wonder
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"The Monkey's Paw" by W. W. Jacobs
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Twelve Angry Men
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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.
It’s no coincidence that stocks have lost momentum as earnings season winds down.
From Barron's • May 19, 2026
“It certainly is an eerie coincidence that the big winners these days are Qualcomm, Intel and Cisco,” said Steve Sosnick, chief strategist at Interactive Brokers.
From MarketWatch • May 15, 2026
One show of indifference was chance, two was coincidence, but this last dismissal made me see the pattern.
From The Wall Street Journal • May 13, 2026
Is this phenomenon of “Blue Dot Fever” real, or is it just a coincidence for specific artists amid a tough economy?
From Los Angeles Times • May 12, 2026
The candle had burst at the same moment she’d exhaled, but...surely that was a coincidence, it had to be.
From "Beasts of Prey" by Ayana Gray
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.
