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The definition of prevent

4 Definitions of: prevent

    1. verb, to keep from happening, esp by taking precautionary action
    2. verb, to keep (someone from doing something); hinder; impede
    3. verb, to interpose or act as a hindrance
    4. verb, to anticipate or precede
    5. Show me some examples of this word: prevent
    6. Show me the etymology of the word: prevent
Synonyms: stop, avoid, frustrate, restrain, check, bar, block, anticipate, hamper, foil And more...
Antonyms: help
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of prevent