QUI VIVE is a French phrase meaning 'on the ALERT' or 'ALERTNESS'. It is often used as a military term to indicate that someone is on guard and ready for action. The crossword solutions for QUI VIVE are ALERT and ONTHE, both of which are five-letter words. ALERT is defined as being watchful and attentive to possible danger or difficulties, while ONTHE is defined as being in a state of readiness or preparedness. Together, these two words accurately describe the meaning of QUI VIVE.