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prevent - definition and synonyms


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verb [transitive] prevent pronunciation in British English /prɪˈvent/
Word Forms
present tense
present participlepreventing
past tenseprevented
past participleprevented
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  1. 1
    to stop something from happening
    Regular cleaning may help prevent infection.
    If necessary, add a little water to prevent sticking.
    prevent something (from) happening: Rubber seals are fitted to prevent gas from escaping.
  2. 2
    to stop someone from doing something
    We tried to prevent her, but she was determined to go.
    prevent someone (from) doing something: The owner is prevented by law from making any major changes.
    She was sure the noise would prevent her sleeping at night.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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