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English definition of “guard”


noun [C]     /ɡɑːd/
WORKPLACE a piece of equipment that protects the user of a machine from being injured by a sharp or dangerous part on the machine : Make sure that the safety guard is in position before using the cutting machine .
a person or group of people whose job is to protect a person , place or thing, or to prevent a person , such as a criminal , from escaping : a night guard at a bank border / prison / security guards
be on your guard (against sth) to be careful to avoid being tricked or getting into a dangerous situation : Stores must always be on their guard against credit card fraud .
(Definition of guard noun from the Cambridge Business English Dictionary © Cambridge University Press)
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