co·​in·​cide | \ ˌkō-ən-ˈsīd How to pronounce coincide (audio) , ˈkō-ən-ˌsīd How to pronounce coincide (audio) \
coincided; coinciding

Definition of coincide

intransitive verb

1a : 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.

Keep scrolling for more

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 The backstory: Owner Parshavi Patel opened her restaurant in November to coincide with Diwali, despite the pandemic. Kara Baskin,, "At Home Kitchen in Needham, inventive dishes, speedily delivered," 11 Feb. 2021 Weeks before the joint session of Congress, Trump had summoned the crowd to Washington for a protest to coincide with counting of the electoral college votes. Anchorage Daily News, "Trump’s lawyers say he was ‘horrified’ by the Capitol attack. Here’s what his allies and aides said really happened that day.," 9 Feb. 2021 To coincide with the scalp serum the brand also launched its Treatment Mask. Nandi Howard, Essence, "Pattern Beauty Launches Two New Products," 29 Jan. 2021 The winner receives $60,000 and a residency at the Corning Museum of Glass (the museum is exhibiting pieces from all 10 competitors to coincide with this new season). Vanessa Lawrence, ELLE Decor, "This Glassblowing Reality Competition Is the Design Show You Should Be Watching," 22 Jan. 2021 Daniels said the page’s deletion seemed to coincide with the blanket social media crackdown following last week’s siege on the U.S. Capitol. Patrick Strickland, Dallas News, "NAACP Garland’s Facebook page removed days before MLK celebration," 15 Jan. 2021 The Mayans were also fascinated by meteor showers: Studies of hieroglyphic records suggest that important occasions, such as royal coronations, were timed to coincide with the Eta Aquarid shower in the spring. Amanda Foreman, WSJ, "Awed by the Meteor Shower of the New Year’s Sky," 1 Jan. 2021 The five shows will be timed to coincide with the coming of 2021 to each U.S. time zone from coast to coast. Doug Maccash,, "Playing it safe on New Year’s Eve and New Year’s Day with smaller events across New Orleans," 29 Dec. 2020 The attacks coincide with last week’s drawdown of U.S. forces to 2,500 service personnel — one of the final acts of the Trump administration and one of its longtime goals. Los Angeles Times, "Twin suicide bombings hit Baghdad, killing 32 and sparking fears of Islamic State comeback," 21 Jan. 2021

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

See More

First Known Use of coincide

1719, in the meaning defined at sense 1a

History and Etymology for coincide

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

Keep scrolling for more

Learn More about coincide

Time Traveler for coincide

Time Traveler

The first known use of coincide was in 1719

See more words from the same year

Statistics for coincide

Last Updated

23 Feb 2021

Cite this Entry

“Coincide.” Dictionary, Merriam-Webster, Accessed 6 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for coincide



English Language Learners Definition of coincide

: to happen at the same time as something else
: to agree with something exactly : to be the same as something else


co·​in·​cide | \ ˌkō-ən-ˈsīd How to pronounce coincide (audio) \
coincided; coinciding

Kids Definition of coincide

1 : to happen at the same time The band's performance is scheduled to coincide with the fireworks.
2 : to agree exactly Their goals coincided.
3 : to occupy the same space The edges of the wallpaper must coincide.

Keep scrolling for more

Comments on coincide

What made you want to look up coincide? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Who Knew?

True or False

Test your knowledge - and maybe learn something along the way.

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!