DICT.TW Dictionary Taiwan

 qui vive /kiˈviv/

 Qui vive  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.
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 qui vive
      n : condition of heightened watchfulness or preparation for
          action; "bombers were put on alert during the crisis"
          [syn: alert]