Usually means: Immediate highest level emergency response.
Definitions Related words Phrases Mentions
We found 19 dictionaries that define the word red alert:

General (17 matching dictionaries)
  1. red alert: Longman Dictionary of Contemporary English
  2. red alert: Merriam-Webster
  3. red alert: Collins English Dictionary
  4. red alert: Vocabulary.com
  5. red-alert: Wordnik
  6. red alert: Cambridge Advanced Learner's Dictionary
  7. red alert: Wiktionary
  8. red alert: The Wordsmyth English Dictionary-Thesaurus
  9. red alert: Infoplease Dictionary
  10. red alert: Dictionary.com
  11. Red Alert (Red Garland album), Red Alert (Transformers), Red Alert (arcade game), Red Alert (band), Red Alert (computer game), Red Alert (disambiguation), Red Alert (film), Red Alert (game show), Red Alert (novel), Red Alert (song), Red Alert, Red alert: Wikipedia, the Free Encyclopedia
  12. red alert: Rhymezone
  13. red alert: FreeDictionary.org
  14. red alert: Mnemonic Dictionary
  15. red alert: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. red alert: Encyclopedia

Slang (1 matching dictionary)
  1. red alert: Urban Dictionary

(Note: See red_alerts as well.)

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Definitions from Wiktionary (red alert)

▸ noun:  A warning that indicates an emergency situation.
▸ noun:  A state of readiness to deal with such emergency situation.

Similar:
red flag, alert, emergency, danger signal, code red, warning bell, alarm bell, tactical warning, threat, distress, more...

Opposite:
green light, all clear, stand down, normalcy

Types:
military alert, weather alert, health alert, security alert, fire alert, terrorism alert, emergency alert, air quality alert, more...

Phrases:
command and conquer red alert 3, more...

Adjectives:
rote, upstage, switch, draft, lead, knockout, opening, fail-safe, set up, forward, present

▸ Words similar to red alert

▸ Usage examples for red alert

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Similar:
red flag, alert, emergency, danger signal, code red, warning bell, alarm bell, tactical warning, threat, distress, more...

Opposite:
green light, all clear, stand down, normalcy

Types:
military alert, weather alert, health alert, security alert, fire alert, terrorism alert, emergency alert, air quality alert, more...

Phrases:
command and conquer red alert 3, more...

Adjectives:
rote, upstage, switch, draft, lead, knockout, opening, fail-safe, set up, forward, present



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