Definition of red alert
: the final stage of alert in which enemy attack appears imminent; broadly : a state of alert brought on by impending danger
Examples of red alert in a sentence
The troops have been put on red alert.
<the paparazzi were on red alert for sightings of the hot new Hollywood couple>
First Known Use of red alert
RED ALERT Defined for English Language Learners
Definition of red alert for English Language Learners
: a warning that there is great danger
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Thesaurus: All synonyms and antonyms for red alert
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