occur Meaning in the Cambridge English Dictionary
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Meaning of “occur” in the English Dictionary

"occur" in British English

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uk   /əˈkɜːr/  us   /-ˈkɝː/ (-rr-)

occur verb (HAPPEN)

B2 [I] (​especially of ​accidents and other ​unexpectedevents) to ​happen: An ​accidentinvolving over ten ​vehicles has occurred in the east-bound ​lane. If any of these ​symptoms occur while you are taking the ​medication, ​consultyourdoctorimmediately.
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occur verb (EXIST)

[I + adv/prep] to ​exist or be ​present in, among, etc.: Violence of some ​typeseems to occur in every ​society. Minerals occur ​naturally in the earth's ​crust.
Phrasal verbs
(Definition of occur from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"occur" in American English

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occurverb [I]

 us   /əˈkɜr/ (-rr-)

occur verb [I] (HAPPEN)

(esp. of ​unexpectedevents) to ​happen: The ​incident occurred ​shortly after the ​plane took off.

occur verb [I] (EXIST)

to ​exist or be ​present: The ​condition occurs ​primarily in ​older adults. Helium occurs as a byproduct of ​naturalgas.
Phrasal verbs
(Definition of occur from the Cambridge Academic Content Dictionary © Cambridge University Press)
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