on guard
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on guard (comparative more on guard, superlative most on guard)
- (fencing) The starting position of a fencing bout; en garde.
- 1881, Robert Louis Stevenson, Virginibus Puerisque:
- We fall on guard, and after all it is a friend who comes to meet us.
- Vigilant, alert.
- (aviation) Transmitting on the aircraft emergency frequency.
Antonyms edit
Translations edit
on alert, vigilant
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