Synonyms of co-occur

co-occur

verb

ˌkō-ə-ˈkər 

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

• accompany
• coincide
• coexist
• happen
• synchronize
• concur
• attend
• transpire
• hap
• chance

Antonyms & Near Antonyms

• precede
• succeed
• antedate
• predate
• follow

Example Sentences

Recent Examples of co-occur

Though it should be noted that these programs do not directly address co-occurring mental health issues and could unintentionally reinforce unhelpful behaviors. — Gwilym Roddick, The Orlando Sentinel, 8 Mar. 2026

Per Mayo Clinic, these conditions often co-occur, increasing risks for heart attack, stroke, and organ damage. — Escher Walcott, PEOPLE, 27 Jan. 2026

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