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on one's guard

Noun CEFR C1

Definitions

In a watchful state; alert; vigilant.

Equivalents

Françaissur ses gardes
2 more languages

Examples

“Be on your guard against pickpockets in the railway station.”
“One had to be on one's guard when thus confronted and, in the course of my numerous meetings with him, I had on occasion to exercise all my wits and be prepared at a moment's notice⟳ to parry a very awkward question⟳, to which I would much rather have⟳ given a considered reply⟳.”

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
See all C1 English words →

See also

on one's hands and knees on one's head on one's high horse on one's honor on one's Jack Jones on one's L's

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