Definition of “prevent” - English Dictionary

“prevent” in British English

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preventverb [ T ]

uk /prɪˈvent/ us /prɪˈvent/

B1 to stop something from happening or someone from doing something:

Label your suitcases to prevent confusion.
[ + -ing verb ] His disability prevents him (from) driving.

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(Definition of “prevent” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“prevent” in American English

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preventverb [ T ]

us /prɪˈvent/

to stop something from happening or someone from doing something:

The police tried to prevent him from leaving.
Can this type of accident be prevented?
preventable
adjective us /prɪˈven·tə·bəl/

Fortunately, the suffering caused by ulcers is entirely preventable.
prevention
noun [ U ] us /prɪˈven·ʃən/

crime prevention

(Definition of “prevent” from the Cambridge Academic Content Dictionary © Cambridge University Press)