red alert

noun
|Updated on: 9 Jul 2018

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

  1. The troops have been put on red alert.

  2. the paparazzi were on red alert for sightings of the hot new Hollywood couple

Recent Examples of red alert from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'red alert.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of red alert

1941

in the meaning defined above

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RED ALERT Defined for English Language Learners

red alert

Definition of red alert for English Language Learners

  • : a warning that there is great danger


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