on guard

*on (one's) guard (against someone or something)

alert against someone or something. (*Typically: be ~; keep ~; remain ~; stay ~.) Try to stay on guard against pickpockets. I am always on my guard. Be on guard when you go into the city.

on your guard

to be careful and aware because a situation might be dangerous I resent this attitude that you can't trust anybody, that you always have to be on your guard.

on (one's) guard

Alert and watchful; cautious.

Common Names:

Name	Pronounced	Usage
Pitter	PIT-tər (Limburgish)	Frisian, Limburgish
Asche	[æʃ]
MÁRta	-	Hungarian
Yuuto	yoo:-to	Japanese
Connell	['kɔnəl]
RÚNi	-	Ancient Scandinavian