co·​in·​ci·​dence | \kō-ˈin(t)-sə-dən(t)s, -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

On closer radar investigation, a team led by the University of Copenhagen’s Kurt Kjær found that this shape was no mere coincidence. Scott K. Johnson, Ars Technica, "Huge, previously unknown impact crater found beneath Greenland’s ice," 18 Nov. 2018 This happened only days after Kate had worn her's, so...coincidence? Marina Liao, Marie Claire, "Pippa Middleton Wore Whistles' Polka Dot Dress one Week After Kate Middleton Did," 26 Oct. 2018 Incredibly, Katrina's doctor believes that as the sisters are not of Asian descent and have no history of the condition in the family, their cases are a rare coincidence. Fox News, "Sisters diagnosed with rare disease weeks apart recovering from brain surgeries," 28 Sep. 2018 Whether out of prescience or a convenient coincidence, American Express has a solution. Sam Dangremond, Town & Country, "See Inside the Exclusive American Express Lounge at the US Open," 30 Aug. 2018 The simultaneous end to the team’s two kicking competitions comes as no coincidence, allowing time for Dickson to become more comfortable holding for Janikowski. Mike Vorel, The Seattle Times, "Seahawks punter Michael Dickson bids bittersweet farewell to ‘mentor’ Jon Ryan," 21 Aug. 2018 Whether by coincidence or not, the entire Shadow War chapter has been reworked now too. Hayden Dingman, PCWorld, "Middle Earth: Shadow of War strips out loot boxes and reworks its end-game," 17 July 2018 Privately, tech leaders believe the timing of Republicans' allegations is no coincidence, coming a few months before the 2018 election. Tony Romm,, "Inside Facebook and Twitter's secret meetings with Trump aides and conservative leaders," 27 June 2018 That is no coincidence, Batum said Monday morning: Clifford is finding ways to get Batum, the Hornets’ best passer, more involved, particularly early in games. Rick Bonnell, charlotteobserver, "Why Charlotte Hornets’ Nicolas Batum has played better last two games," 22 Jan. 2018

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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Statistics for coincidence

Last Updated

1 Dec 2018

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Time Traveler for coincidence

The first known use of coincidence was in 1605

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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

: the occurrence of two or more things at the same time

: the state of two or more things being the same


co·​in·​ci·​dence | \kō-ˈin-sə-dəns \

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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