co-occur

verb

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

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
ˌkō-ə-ˈkər-ən(t)s How to pronounce co-occur (audio)
noun
plural co-occurrences
co-occurrence of the reactions
co-occurrence of two diseases

Synonyms

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Examples of co-occur in a Sentence

the chronic depression that so often co-occurs with drug abuse
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.
Sometimes, these factors can co-occur with stress, leading to hair loss. — Michael MacIntyre, Verywell Health, 31 Jan. 2025 Excessive alcohol use is linked to cognitive decline and neurodegenerative diseases such as Alzheimer’s, and mental health conditions such as anxiety and depression often co-occur with high levels of drinking. — Cassie Shortsleeve, SELF, 3 Jan. 2025

Word History

First Known Use

1957, in the meaning defined above

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

Rhymes for co-occur

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co-occur
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Cite this Entry

“Co-occur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/co-occur. Accessed 25 Mar. 2025.

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