co·​in·​cide | \ˌkō-ən-ˈsīd, ˈkō-ən-ˌsīd \
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

Synonyms & Antonyms for coincide


agree, concur


differ, disagree

Visit the Thesaurus 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 attacks and the protests coincide with an unprecedented political opening in Ethiopia under its new prime minister, Abiy Ahmed. Paul Schemm, The Seattle Times, "Ethiopia’s ethnic divides rock capital," 17 Sep. 2018 Their visit will coincide with the Invictus Games, a competition Prince Harry founded in 2014, which take place in Sydney this year. Megan Friedman, Town & Country, "Queen Elizabeth's Former Spokesperson Says Meghan Markle’s Trip to Australia Will Be a 'Baptism of Fire'," 27 Aug. 2018 The truce will coincide with Eid, the religious holiday that marks the end of Ramadan. Sayed Salahuddin And Missy Ryan,, "Taliban announces first cease-fire with Afghan forces since start of war," 9 June 2018 The rising discrepancy does coincide with a change in Border Patrol policy. Bob Ortega, CNN, "Border Patrol failed to count hundreds of migrant deaths on US soil," 14 May 2018 The event will coincide with the 25th anniversary of the all-boys Loyola High. Ann Zaniewski, Detroit Free Press, "Collapsed chapel, a school gym and hope, all part of this weekend's Mass Mob," 11 May 2018 Beltre's return will could coincide with the return of Rougned Odor, who played five innings at second base Sunday and is 1 for 5 in two games with Double A Frisco. Jeff Wilson, star-telegram, "Rangers Reaction: With Beltre, Odor closer to returning, here's how Profar, Kiner-Falefa can stay in the lineup | Fort Worth Star-Telegram," 6 May 2018 This production coincide with the 19th anniversary of the Columbine High School massacre to 1999 in Littleton, Colorado. Mark Rapp,, "Cleveland Arts listings for April 20-26: Akron Symphony Orchestra presents "Harry Potter and the Chamber of Secrets in Concert" & More," 19 Apr. 2018 Investors have fretted over signs of a slowdown overseas, where fractious European politics and weak Chinese economic data coincide with trade tensions between Washington and Beijing. WSJ, "Dollar Surges Amid Political Turbulence Abroad," 12 Nov. 2018

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

Statistics for coincide

Last Updated

30 Nov 2018

Look-up Popularity

Time Traveler for coincide

The first known use of coincide was in 1719

See more words from the same year

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 \
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

More from Merriam-Webster on coincide

Rhyming Dictionary: Words that rhyme with coincide

Thesaurus: All synonyms and antonyms for coincide

Spanish Central: Translation of coincide

Nglish: Translation of coincide for Spanish Speakers

Britannica English: Translation of coincide for Arabic Speakers

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).


the figure or shape of a crescent moon

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
True or False

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

Add Diction

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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