co·​in·​ci·​dence | \ kō-ˈin(t)-sə-dən(t)s How to pronounce coincidence (audio) , -sə-ˌden(t)s \

Definition of coincidence

1 : the act or condition of coinciding : correspondence … a perfect coincidence between truth and goodness …— Robert South
2 : the occurrence of events that happen at the same time by accident but seem to have some connection … causal connection requires something more than mere coincidence as to time and place …— Wayne R. LaFave also : any of these occurrences

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Examples of coincidence in a Sentence

It was mere coincidence that brought them together so far from Chicago. By coincidence, every man in the room was named Fred. “I'm going to Boston this weekend.” “What a coincidence! I am too.” It was no coincidence that he quit his job at the bank a day after the robbery. a series of strange coincidences By a fortunate coincidence, we arrived at the theater at the same time. Scientists have no explanation for the coincidence of these phenomena.
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Recent Examples on the Web The coincidence, and the contrast, was not lost on many of the speakers and guests at a private ceremony at the grove in Golden Gate Park. Michael Cabanatuan, San Francisco Chronicle, 5 June 2021 That molecule is currently being tested by Merck in a COVID-19 clinical trial, though Chatterjee says that is a coincidence, as the American pharma giant wasn’t involved in this project. San Diego Union-Tribune, 4 June 2021 Former President Donald Trump and his administration long raised suspicions over the coincidence of the bat research lab being in the epicenter of the pandemic’s outbreak, with its research including similar viruses. Fox News, 29 May 2021 In Grey’s Anatomy, nothing is a coincidence — and Link just so happens to spend the episode pondering his own future as a father. Ariana Romero,, 28 May 2021 That wasn’t a coincidence, per committee chair Scott Hansen. Bryan Schott, The Salt Lake Tribune, 28 May 2021 The similarity in the spelling of their names is not a coincidence, by the way. Laird Borrelli-persson, Vogue, 27 May 2021 The favorable coincidence of Martian and Earth orbits only occurs every 15 years. Loren Thompson, Forbes, 19 Mar. 2021 Heidecker found another silver lining to the coincidence. Bill Keveney, USA TODAY, 6 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coincidence.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of coincidence

1605, in the meaning defined at sense 1

History and Etymology for coincidence

borrowed from Medieval Latin coincidentia, derivative of coincident-, coincidens, present participle of coincidere "to agree in nature, coincide"

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Learn More about coincidence

Time Traveler for coincidence

Time Traveler

The first known use of coincidence was in 1605

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Statistics for coincidence

Last Updated

12 Jun 2021

Cite this Entry

“Coincidence.” Dictionary, Merriam-Webster, Accessed 13 Jun. 2021.

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More Definitions for coincidence



English Language Learners Definition of coincidence

: a situation in which events happen at the same time in a way that is not planned or expected
formal : the occurrence of two or more things at the same time
formal : the state of two or more things being the same


co·​in·​ci·​dence | \ kō-ˈin-sə-dəns How to pronounce coincidence (audio) \

Kids Definition of coincidence

1 : a situation in which things happen at the same time without planning It was a coincidence that we chose the same week for vacation.
2 : a condition of coming together in space or time The coincidence of the two events was eerie.


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