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Prevent (verb)
To stop; to keep from. from 16th c.
“I brushed my teeth to prevent them from going yellow.”
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Prevent (verb)
To take preventative measures. from 16th c.
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Prevent (verb)
To come before; to precede. 16th-18th c.
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Prevent (verb)
To outdo, surpass. 16th-17th c.
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Prevent (verb)
To be beforehand with; to anticipate.
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Protect (verb)
To keep safe; to defend; to guard; to prevent harm coming to.
“to protect a child from danger”
“This antivirus package will protect your computer from hackers.”
“Condoms are designed to protect against sexually-transmitted diseases.”
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Protect (verb)
To book a passenger on a later flight if there is a chance they will not be able to board their earlier reserved flight.
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Prevent (verb)
keep (something) from happening
“action must be taken to prevent further accidents”
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Prevent (verb)
stop (someone) from doing something
“the guards threatened to bar the gates to prevent him leaving”
“locks won’t prevent a determined burglar from getting in”
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Prevent (verb)
(of God) go before (someone) with spiritual guidance and help.