coincide

verb

coincided; coinciding

intransitive verb

1
a
: to occupy the same place in space or time
The base of the triangle coincides with one side of the square.
The heroic age of bridge construction coincided with the expansion of the railroads …Mario Salvadori
b
: to occupy exactly corresponding or equivalent positions on a scale or in a series
100° Celsius coincides with 212° Fahrenheit.
2
: to correspond in nature, character, or function
" … our sentiments coincided in every particular … "Jane Austen
3
: to be in accord or agreement : concur
She coincided with his views on most subjects.
Choose the Right Synonym for coincide

agree, concur, coincide mean to come into or be in harmony regarding a matter of opinion.

agree implies complete accord usually attained by discussion and adjustment of differences.

on some points we all can agree

concur often implies approval of someone else's statement or decision.

if my wife concurs, it's a deal

coincide, used more often of opinions, judgments, wishes, or interests than of people, implies total agreement.

their wishes coincide exactly with my desire

Examples of coincide in a Sentence

The goals of the business partners coincide. the heaviest snowfall of the season coincided with the start of our weeklong ski vacation
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The confirmation of drones over Germany comes as NATO's Denmark investigates a wave of drone disruption to its airports that officials have characterized as a hybrid attack, and coincides with Estonian, Polish, and Romanian accusations against Russia of serious airspace incursions. Robert Birsel, MSNBC Newsweek, 1 Oct. 2025 And that pushback coincides with a deregulatory push that is all about scale. Alex Weprin, HollywoodReporter, 1 Oct. 2025 The special primary and runoff election dates coincide with the regular primary and runoff election dates. Arkansas Online, 1 Oct. 2025 Some fans point to the absence of Will Muschamp, who went to an off-field role after the 2023 season, coinciding with the defense slipping last year. Seth Emerson, New York Times, 1 Oct. 2025 See All Example Sentences for coincide

Word History

Etymology

borrowed from Medieval Latin coincidere "to be identical in substance, agree in position," from Latin co- co- + incidere "to fall or drop (into), come by chance, chance to happen" — more at incident entry 1

First Known Use

1719, in the meaning defined at sense 1a

Time Traveler
The first known use of coincide was in 1719

Browse Nearby Words

Cite this Entry

“Coincide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coincide. Accessed 2 Oct. 2025.

Kids Definition

coincide

verb
co·​in·​cide ˌkō-ən-ˈsīd How to pronounce coincide (audio)
coincided; coinciding
1
: to occupy the same place in space or time
2
: to occupy the same positions on a scale
3
: to agree exactly

More from Merriam-Webster on coincide

Last Updated: - Updated example sentences
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