Definition of qui vive in English:

qui vive

Pronunciation /ˌkē ˈvēv/ /ˌki ˈviv/

noun

Phrases

    on the qui vive
    • On the alert or lookout.

      ‘it's tiring to be always on the qui vive’
      ‘the regiment remained on the qui vive for invasion’

Origin

Late 16th century from French, literally ‘(long) live who?’, i.e. ‘on whose side are you?’, used as a sentry's challenge.

Pronunciation

qui vive

/ˌkē ˈvēv/ /ˌki ˈviv/