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English definition of “guard”

guard

noun [C] uk   /ɡɑːd/ us    /ɡɑːrd/

guard noun [C] (PERSON WHO PROTECTS)

B1 a person or group of people whose job is to protect a person, place, or thing from danger or attack, or to prevent a person such as a criminal from escaping: prison guards security guards There are guards posted (= standing and watching) at every entrance. Armed guards are posted around the site. The frontier is patrolled by border guards.Protection and protectorsEnvironmental issues be under guard to be kept in a place by a group of people who have weapons: The ex-president was under armed guard in the palace.Defending and protectingBacking, supporting and defendingPreserving and saving stand/keep guard (also be on guard) to be responsible for protecting someone or something, or for preventing someone from escaping: Two of the soldiers kept guard over the captured guns. Armed police stand guard outside the house.Defending and protectingBacking, supporting and defendingPreserving and saving the changing of the guard a ceremony held outside Buckingham Palace in London when one set of soldiers replaces the soldiers who have finished their time on duty standing outside the palaceMilitary training and ceremonies

guard noun [C] (ON A TRAIN)

UK (US conductor) a railway official who travels on and is responsible for a trainRailway workers

guard noun [C] (DEVICE)

a device that protects a dangerous part of something or that protects something from getting damaged: a fire guard a trigger guard The helmet has a face guard attached.Machine parts

guard

verb [T] uk   /ɡɑːd/ us    /ɡɑːrd/

guard verb [T] (WATCH)

B2 to protect someone or something from being attacked or stolen: Soldiers guard the main doors of the embassy.Defending and protectingBacking, supporting and defendingPreserving and saving B2 to watch someone and make certain they do not escape from a place: Five prison officers guarded the prisoners.Defending and protectingBacking, supporting and defendingPreserving and saving

guard verb [T] (NOT TELL)

to keep information secret: Journalists jealously (= carefully) guard their sources of information.Secrecy and privacy
Phrasal verbs
(Definition of guard from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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