Dictionary.com
Thesaurus.com
Synonyms

occurrence

American  
[uh-kur-uhns, uh-kuhr-] / əˈkɜr əns, əˈkʌr- /

noun

  • occurrences
    plural
  1. the action, fact, or instance of occurring.

  2. something that happens; event; incident.

    We were delayed by several unexpected occurrences.

    Synonyms:
    circumstance

occurrence British  
/ əˈkʌrəns /

noun

  1. something that occurs; a happening; event

  2. the act or an instance of occurring

    a crime of frequent occurrence

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See event.

Other Word Forms

Derived Forms

Inflected Forms

Nouns


Etymology

Origin of occurrence

1530–40; < Latin occurrent-, stem of occurrēns (present participle of occurrere “to run up to, run to meet”), from oc- (variant of ob- ; see ob- ( def. )) + currere “to run” + -ence; compare Medieval Latin occurrentia


Explanation

An occurrence is an instance of something or a time when something happens. If you get migraines, the doctor might ask how many occurrences of the headache you have in a month. An occurrence is an instance of something that happens repeatedly. The occurrence of Lyme disease is more frequent in New England than it is in other parts of the country. As soon as authorities see an occurrence of rabies, they send warnings out to people who live in the area. Sometimes though, an occurrence is a single event or an incident. If you and your friend saw a ghost in the cemetery, that would be quite an occurrence!

Keep Reading on Vocabulary.com

Vocabulary lists containing occurrence

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

An unusual occurrence with breadth and the stock market just occurred.

From The Wall Street Journal ● Oct. 23, 2026

“Based on current knowledge of rabies occurrence in Los Angeles County, it is likely this raccoon was infected with rabies from a bat,” public health officials stated in a news release.

From Los Angeles Times ● Oct. 6, 2026

“The Swan” was not a singular occurrence, then, but part of an era hawking cosmetic improvement, whether surgical or noninvasive, as the key to succeeding at life.

From Salon ● Oct. 1, 2026

The resident, who did not want to reveal their name, said the groups were not a daily occurrence but had become a familiar sight over the past year.

From BBC ● Sep. 19, 2026

One Saturday night, Helmuth is eating dinner with Mutti and Hugo—a rare occurrence since Helmuth has moved in with his grandparents.

From "The Boy Who Dared" by Susan Campbell Bartoletti

The president said he had "directed the Nigerian Air Force to immediately commence a thorough investigation into the cause of the crash to prevent future occurrences".

From Barron's ● Oct. 5, 2026

It’s not merely that security breaches exposing the personal information of up to hundreds of millions of people have become almost daily occurrences.

From Los Angeles Times ● Oct. 2, 2026

The prince sympathised with residents who might be "anxious" about extreme weather events he said were no longer "one in 50-year" occurrences but instead seemed to be happening every year.

From BBC ● Oct. 1, 2026

Not exactly encouraging is how these rogue occurrences happened at companies that should have had the best handle on guardrails, Crawford said.

From The Wall Street Journal ● Aug. 7, 2026

There is no general answer to the question of which processes dominate, the outside ones or the inside ones; the rare but violent events, or the common and inconspicuous occurrences.

From "Cosmos" by Carl Sagan

Random Word

Spin the wheel and learn a new word!

Get a word


Vocabulary.com logo
by dictionary.com

Join 14,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training