keep one's guard up

English

Verb

keep one's guard up (third-person singular simple present keeps one's guard up, present participle keeping one's guard up, simple past and past participle kept one's guard up)

1. To be careful and alert to the possibility of danger.

   Synonyms: have one's guard up, be on one's guard

   Antonyms: lower one's guard, let one's guard down

Translations

Translations

• Finnish: pysyä valppaana, pitää varansa
• French: rester sur ses gardes (fr)
• Polish: trzymać gardę impf

References

• “keep one's guard up”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.