Definition of co-occurnext
as in to accompany
to occur or exist at the same time the chronic depression that so often co-occurs with drug abuse

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of co-occur It’s not known if Victoria Jones also had a co-occurring mental illness but the past year had become increasingly turbulent for her. Martha Ross, Mercury News, 8 Jan. 2026 That’s when a team of evolutionary biologists noticed that many of the physical traits that co-occur with domestication trace back to an important group of cells during embryonic development called neural crest cells. Marina Wang, Scientific American, 14 Nov. 2025 Psychiatric problems that often co-occur with ADHD, such as anxiety or depression, can worsen ADHD symptoms that are already present. Carol Mathews, The Conversation, 15 Oct. 2025 That help is critical since the disorder is associated with co-occurring mental health issues, a lower quality of life and life expectancy, and higher rates of disability, according to the National Institute of Mental Health. Kristen Rogers, CNN Money, 2 Sep. 2025 Another key point is that overdose is disproportionately impacting vulnerable groups including women, people of color, rural populations and individuals with co-occurring mental illness. Lipi Roy, Forbes.com, 28 Aug. 2025 Currently, research is shifting to examine not only how the collaborative care model can address substance abuse symptoms but also the co-occurring mental health conditions. MSNBC Newsweek, 18 Aug. 2025 Postprandial hypotension is common in older adults and often co-occurs with orthostatic hypotension. Colleen Doherty, Verywell Health, 16 Aug. 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
Recent Examples of Synonyms for co-occur
Verb
  • Thundersnow, a rare weather event, occurs when snow, rather than rain, accompanies a thunderstorm.
    Melina Khan, USA Today, 23 Jan. 2026
  • Miami’s traffic surge has accompanied its population boom during and after the pandemic.
    Max Klaver, Miami Herald, 23 Jan. 2026
Verb
  • This shift also coincides with the mirror selfie comeback.
    Daisy Maldonado, InStyle, 20 Jan. 2026
  • The uptick coincided with an increase in his performance on the cost of living—from 26% last month to 31% this month among all respondents, driven by a 10-point gain among Republican voters.
    Sara Dorn, Forbes.com, 20 Jan. 2026
Verb
  • In the Everglades, alligators and crocodiles coexist (and are seen regularly), and the flora and fauna are so robust that this national park was the first set aside purely for its biodiversity.
    Evie Carrick, Travel + Leisure, 11 Jan. 2026
  • Designed to coexist with its natural surroundings, the building is one of only 35 in the world to achieve full Living Building Challenge certification, generating its own energy and treating its own water.
    Taryn Shorr-Mckee, Midwest Living, 11 Jan. 2026

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Cite this Entry

“Co-occur.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/co-occur. Accessed 25 Jan. 2026.

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