on one's guard
Prepositional phrase
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Prepositional phrase
- In a watchful state; alert; vigilant.
- Be on your guard against pickpockets in the railway station.
- Synonyms: on the alert
- French: sur ses gardes
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.002