Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun red_alert

1 sense of red alert

Sense 1
red alert -- (the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger))
       => alert, qui vive -- (condition of heightened watchfulness or preparation for action; "bombers were put on alert during the crisis")