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On guard Meaning in English

expression

ˈɑn/, /ˈɔn/ /ˈɡɑɹd
AHN-GARD
ˈɒn/ /ɡˈɑːd
ON-GAHD

释义

Being alert and ready to protect yourself or respond to danger or problems; paying close attention to possible threats.

用法与细微差别

Common in both everyday and formal contexts, especially regarding safety and security. Often used after 'be' or 'stay' (e.g., 'stay on guard'). Also a term in fencing, but in general English mostly means 'be alert.' Not slang, and less intense than 'paranoid.'

例句

The security guard is always on guard at night.

basic

We must remain on guard for any changes in the weather.

basic

The dog stays on guard while its owner sleeps.

basic

Ever since the break-in, I've been on guard around strangers.

natural

You always have to be on guard for scams online.

natural

He kept his emotions on guard and didn’t let anyone get too close.

natural