co-oc·​cur ˌkō-ə-ˈkər How to pronounce co-occur (audio)
co-occurred; co-occurring

intransitive verb

: to occur at the same time or in the same place
symptoms that often co-occur
co-occurring species
… certain words co-occur or collocate regularly with certain other words.Morton Benson
co-occurrence noun
plural co-occurrences
co-occurrence of the reactions
co-occurrence of two diseases

Examples of co-occur in a Sentence

Recent Examples on the Web Mental health conditions, like anxiety and depression, can also lead to or co-occur with insomnia, but insomnia also dramatically increases the risk of developing these conditions. Dominique Fluker, Essence, 9 Jan. 2024 Over time, a neural network trained to predict which words co-occur with other words learned to place similar words (like dog and cat) close together in vector space. Timothy B. Lee and Sean Trott, Ars Technica, 31 July 2023 Emotional infidelity may co-occur with physical infidelity or manifest independently and poses a significant threat to the emotional connection and trust within a committed relationship. Mark Travers, Forbes, 13 Nov. 2023 The surgery should be approached with caution in people with severe bleeding disorders, diabetes co-occurring with peripheral artery disease, or a history of deep vein thrombosis (DVT). Stuart Hershman, Verywell Health, 27 June 2023 Research shows that internalizing disorders—like anxiety disorder or major depressive disorder—commonly co-occur with AUD. Sherri Gordon, Health, 10 May 2023 The researchers cataloged 27 emotions, some of which were more likely to co-occur and so were considered related. Eva Rothenberg, CNN, 16 Apr. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'co-occur.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1957, in the meaning defined above

Time Traveler
The first known use of co-occur was in 1957

Dictionary Entries Near co-occur

Cite this Entry

“Co-occur.” Dictionary, Merriam-Webster, Accessed 1 Mar. 2024.

Last Updated: - Updated example sentences
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