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UPON ONE'S GUARD
| Pronunciation (US): |  | (GB): | |
I. (adjective)
Sense 1
Meaning:
Vigilant
Example:
must remain on your guard in such a situation
Synonyms:
on guard; on one's guard; on your guard; upon one's guard
Classified under:
Similar:
wary (marked by keen caution and watchful prudence)
