1. [syn: alert, qui vive]
The Collaborative International Dictionary of English v.0.48:
Qui vive \Qui` vive"\ (k[-e]` v[-e]v"). [F., fr. qui who + vive,
pres. subj. of vivre to live.]
The challenge of a French sentinel, or patrol; -- used like
the English challenge: "Who comes there?"
To be on the qui vive, to be on guard; to be watchful and
alert, like a sentinel.
WordNet (r) 3.0 (2006):
n 1: condition of heightened watchfulness or preparation for
action; "bombers were put on alert during the crisis" [syn:
alert, qui vive]