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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Outbreaks tend to occur most often in the late spring and summer.—ABC News,
8 July 2026 Strong winds are occurring but are not so strong as to warrant a High wind warning.—
Ca Weather Bot,
Sacbee.com,
8 July 2026 When heavy rain occurs, there is a risk of flooding, particularly in low-lying and flood-prone regions.—
Nc Weather Bot,
Charlotte Observer,
9 July 2026 Instead much of the motion occurs through aseismic slip—a slow, silent release of strain that produces little or no seismic shaking.—
Sam MacDonald,
Scientific American,
8 July 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