guard

US /ɡɑːrd/
UK /ɡɑːrd/
"guard" picture
1.

a person who protects a place or people, or who prevents prisoners from escaping

:
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The security guard checked our bags at the entrance.
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A prison guard escorted the inmate to the visiting room.
:
sentrywatchmancustodianwardenprotector
2.

a device or part of something that provides protection

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The machine has a safety guard to prevent accidents.
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He wore a mouth guard during the boxing match.
:
shieldbarriercoverfenderscreen
1.

to protect someone or something from danger or harm

:
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The dog was trained to guard the house.
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You need to guard your privacy online.
:
defendsafeguardshieldsecurewatch over
:
guardedsecurity guardguard dogguard hairguard railcrossing guardcattle guard