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coincide

American  
[koh-in-sahyd] / ˌkoʊ ɪnˈsaɪd /

verb (used without object)

coincides, present (3rd person singular) coincided, past participle, past coinciding present participle
  1. to occupy the same place in space, the same point or period in time, or the same relative position.

    The centers of concentric circles coincide. Our vacations coincided this year.

  2. to correspond exactly, as in nature, character, etc..

    His vocation coincides with his avocation.

  3. to agree or concur, as in thought or opinion.

    Their opinions always coincide.

    Synonyms:
    square, jibe, tally, match, correspond, accord
    Antonyms:
    contradict, differ

coincide British  
/ ˌkəʊɪnˈsaɪd /

verb

  1. to occur or exist simultaneously

  2. to be identical in nature, character, etc

  3. to agree

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of coincide

First recorded in 1635–45; from Medieval Latin coincidere, from Latin co- co- + incidere “to fall upon, befall” ( see incident)

Explanation

When things happen at the same time, they are said to coincide. Often, this is because they're intentionally coordinated — "the bake sale coincided with Parent Day" — but not always. Coincide can also mean happen together in other ways. "My mother's views on appropriate teen fashion do not always coincide with mine" is a tactful way to say she hates your clothes. You could also describe two roads coming together as coinciding — though it's more poetic to talk about when they diverge.

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Vocabulary lists containing coincide

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.

Still, those holidays do have the benefit of being either a single day or a collection of days that temporally coincide with winter’s existing holidays.

From Salon • Jun. 30, 2026

The Big Tech layoffs coincide with the major hyperscaler’s AI spending plans plans of around $700 billion this year alone for data centers.

From Barron's • Jun. 23, 2026

The orders coincide with billions of dollars in funding for quantum companies being awarded by the Commerce Department and a private-sector investment frenzy from companies including IBM, Microsoft and Google.

From The Wall Street Journal • Jun. 22, 2026

The votes coincide with the Makerfield by-election in Greater Manchester, which could have major implications for Prime Minister Sir Keir Starmer.

From BBC • Jun. 17, 2026

Something can be identical to something else, but must coincide with it; the words identical and coincide demand different prepositions.

From "The Sense of Style" by Steven Pinker

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