occur

verb

oc·​cur ə-ˈkər How to pronounce occur (audio)
occurred; occurring ə-ˈkər-iŋ How to pronounce occur (audio)
-ˈkə-riŋ
Synonyms of occurnext

intransitive verb

1
: to be found or met with : appear
This bird occurs in New England in the spring.
2
: to come into existence : happen
The accident occurred at 5 p.m.
3
: to come to mind
an idea that has occurred to me

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The Meaning of Occur and the Spelling of Its Forms

Occur has three meanings. It means "to be found or met with; appear," as in "a phenomenon that occurs around the world"; it means "to come into existence; happen," as in "an event that occurred on Friday"; and it means "to come to mind," as in "it occurs to me that the word is quite useful."

It's an unusual-looking word, being so small but with two c's up against each other, and then just a simple r at the end. The r is doubled, though, for the past tense: occurred. And the double r continues in the present participle: occurring.

Examples of occur in a Sentence

The event is scheduled to occur at noon tomorrow. No one was ready for what was about to occur. There's a chance that a similar event will occur in the future. The disease tends to occur in children under the age of five. The plant occurs naturally throughout South America.
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.
No charges have been filed The search warrant does not allege that a crime has occurred, but states investigators are seeking records to determine whether city resources were used in violation of state law governing misconduct in public office. Adrienne Davis, jsonline.com, 20 Dec. 2025 Officials have said part of the Brown University building where the shooting occurred lacked cameras, citing its age. Kerry Breen, CBS News, 20 Dec. 2025 To be clear, Hirsch doesn’t believe that there needs to be stability in the AI trade for the Santa Claus rally to occur, especially given the recent rotation into other areas of the market such as financials and industrials — two of only four S & P 500 sectors that are on track for a winning month. Sean Conlon, CNBC, 19 Dec. 2025 Economists have also said rising prices during Biden's presidency did not occur in a vacuum, but emerged in part from factors such as the supply shortage imposed by the pandemic. Oren Oppenheim, ABC News, 19 Dec. 2025 See All Example Sentences for occur

Word History

Etymology

borrowed from Latin occurrere "to run to meet, confront in a hostile manner, be met, present itself (to the mind)," from oc-, assimilated variant of ob- ob- + currere "to run, roll, move swiftly" — more at current entry 1

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of occur was in the 15th century

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Cite this Entry

“Occur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/occur. Accessed 21 Dec. 2025.

Kids Definition

occur

verb
oc·​cur ə-ˈkər How to pronounce occur (audio)
occurred; occurring -ˈkər-iŋ How to pronounce occur (audio)
1
: to be found or met with : appear
plants that occur in meadows
2
: to come into existence : happen
an accident occurred on the way to school
success doesn't just occur, it is earned
3
: to come into the mind
it just occurred to me
Etymology

from Latin occurrere "to be found or met with, appear," literally, "to run up against," from oc-, ob- "in the way" and currere "to run" — related to current, incur

More from Merriam-Webster on occur

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