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.
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.
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The diversity of hormone function, from milk to mood, hunger to height, does not occur through the action of any single part of our anatomy.—Literary Hub, 20 May 2026 The heated exchange occurred after Northern Ireland's McIlroy hit a poor shot on the 16th hole, which sent the ball straight into a bunker.—Skyler Caruso, PEOPLE, 19 May 2026 The conviction joins a running list of jail controversies for the Sheriff’s Office, mostly occurring under the previous administration under Laurie Smith and costing the county more than $20 million in legal settlements.—Robert Salonga, Mercury News, 19 May 2026 Most flood deaths occur in vehicles.—Star-Telegram Weather Bot, Fort Worth Star-Telegram, 19 May 2026 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
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