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
This question appears to be off-topic. The users who voted to close gave these specific reasons:
- "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
- "This question should include more details than have been provided here. Please edit to add the research you have done in your efforts to answer the question, or provide more context. See: Details, Please." – shin, Brian Tompsett - 汤莱恩
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.