keep one's guard up (English, verb)
expansion: 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)
Senses:
glosses: To be careful and alert to the possibility of danger.
Forms:
form: keeps one's guard up
tags: present
singular
third-person
form: keeping one's guard up
tags: participle
present
form: kept one's guard up
tags: participle
past
form: kept one's guard up
tags: past