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1. Dictionary

   A·lert

   /əˈlərt/

   

   adjective

   • 1. quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant: "an alert police officer discovered a truck full of explosives" Similar vigilanthypervigilantwide awakeawarewatchfulattentiveobservantcircumspectwarycharyheedfulcannyon the lookouton one's guardon one's toesall earskeeping one's eyes open/peeledkeeping a weather eye openon the qui viveOpposite inattentive
   • ▪ able to think clearly; intellectually active: "she remained active and alert until well into her eighties" Similar quick-wittedsharpbrightquickkeenperceptivewide awakeresponsiveagileacuteastuteinformal:on the ballon one's toesquick off the markquick on the uptakeall therewith itbright-eyed and bushy-tailedOpposite slow

   noun

   • 1. the state of being watchful for possible danger: "security forces were placed on alert" Similar vigilancewatchfulnesscarefulnessattentivenessguardednesscarecautioncautiousnesswarinesscharinessalertnesshypervigilancecircumspectionprudenceheedfulnessheedmindfulnessOpposite carelessness
   • ▪ an announcement or signal warning of danger: "a bomb alert" Similar warningcautionnotificationnoticeexhortationinjunctionsirenalarmsignaldanger signaldistress signal
   • ▪ a period of vigilance in response to a warning of danger: "traffic was halted during the alert"
   • ▪ a signal on an electronic device that prompts the user to do something or attracts their attention: "a vibrating alert is a discreet alternative to ringtones"

   verb

   • 1. warn (someone) of a danger, threat, or problem, typically with the intention of having it avoided or dealt with: "he alerted people to the dangers of smoking"

   Word Origin late 16th century (originally in military use): from French alerte, from Italian all' erta ‘to the watchtower’.

   Derivatives

   • 1. alertly adverb

   Scrabble Points: 5

   • A

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   • L

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   • E

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2. www.oxfordlearnersdictionaries.com › definition › englishalert verb - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

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   to make somebody aware of something. be alerted to something They had been alerted to the possibility of further price rises. Definition of alert verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

3. dictionary.cambridge.org › us › dictionaryALERT | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   noun. us / əˈlɝːt / uk / əˈlɜːt / C1 [ C or U ] a warning to people to be prepared to deal with something dangerous: a bomb alert. The army was put on ( full) alert as the peace talks began to fail. The public were warned to be on the alert for (= watching carefully for) suspicious packages. [ C ]

4. www.vocabulary.com › dictionary › alertAlert - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › alert

   When you are alert, you are awake and ready. When you issue an alert you give warning, alerting people to, or notifying them of, a concern. Alert is one of the rare words that can be used in the same form as a noun, verb, and adjective. In all parts of speech, alert implies preparedness.

5. www.collinsdictionary.com › dictionary › englishALERT definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   2 days ago · 1. watchful and ready, as in facing danger. 2. quick in thought or action; active; nimble. noun. 3. a warning signal as of an expected air raid; alarm. 4. the period during which such a warning is in effect.

6. www.oxfordlearnersdictionaries.com › definition › englishalert noun - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

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   noun. /əˈlɜːt/ /əˈlɜːrt/ [singular, uncountable] a situation in which people are watching for danger and ready to deal with it. on the alert (for something) Police are warning the public to be on the alert for suspicious packages. on alert More than 5 000 troops have been placed on (full) alert. Extra Examples.

7. dictionary.cambridge.org › us › dictionaryALERT | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › us › dictionary

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   noun. uk / əˈlɜːt / us. [ C ] a warning about a possibly dangerous situation: a bomb alert. be on full/red alert. to be expecting problems and ready to deal with them: Police in the region were on full alert against further attacks. (Definition of alert from the Cambridge Learner's Dictionary © Cambridge University Press) Translations of alert.

8. www.ldoceonline.com › dictionary › alertalert | meaning of alert in Longman Dictionary of Contemporary...

   www.ldoceonline.com › dictionary › alert

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   alert meaning, definition, what is alert: giving all your attention to what is hap...: Learn more.