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I want to know the difference of meaning between 'stop'and 'prevent'.

closed as off-topic by shin, Brian Tompsett - 汤莱恩, user3169, Em., Varun Nair Jul 7 '16 at 5:08

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  • "Basic questions on spelling, meaning or pronunciation are off-topic as they should be answered using a dictionary. See: Policy for questions that are entirely answerable with a dictionary" – user3169, Em., Varun Nair
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    Driving into a brick wall will stop your car very quickly whereas applying the brakes properly will prevent you from hitting the wall. – AdrianHHH Jul 6 '16 at 11:40
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The definition of stop (Oxford Dictionnary) is

(Of an event, action, or process) come to an end; cease to happen

The definition of prevent (Oxford Dictionnary) is

Keep (something) from happening

So the difference between the two is the moment you act. If the action has already started, you stop it. Otherwise you prevent it.

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