Word.ws English Dictionary

co-occur

co-occur verb: to occur together.

Verb

co-occur (third-person singular simple present co-occurs, present participle co-occurring, simple past and past participle co-occurred)

  1. (intransitive) To occur together.
    • For all of the taxonomies studied, there was a level of abstraction at which all of these factors co-occurred.
    • The lexicon or dictionary in a language is then the set of word forms and idiomatic expressions—common sets of words that co-occur often—each with a meaning (the semantics).2025, Edward A. F. Gibson, “Introduction” (chapter 1), in Syntax: A Cognitive Approach, MIT Press, →DOI, →ISBN, page 2

Forms of co-occur

third-person singular presentco-occurs
present participleco-occurring
past participleco-occurred
pastco-occurred
alternative formcooccur
alternative formcoöccur

Origin of co-occur

From co- + occur.

Questions about co-occur

What does co-occur mean?
Co-occur means to occur together.
What part of speech is co-occur?
Co-occur is a verb.
What is the past tense of co-occur?
The past tense of co-occur is co-occurred.

Words near co-occur in the dictionary

  1. co-mother-in-law
  2. co-mothers
  3. co-mothers-in-law
  4. co-NP
  5. co-NP-completeness
  6. co-occur
  7. co-occurred
  8. co-occurrence
  9. co-occurrence network
  10. co-occurrence networks
  11. co-occurrences

Source and license

Adapted from Wiktionary: co-occur (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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