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   alert

   /əˈləːt/

   adjective

   • 1. quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant: "an alert police officer discovered a lorry full of explosive" 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 are on the alert for an upsurge in violence" Similar vigilancewatchfulnesscarefulnessattentivenessguardednesscarecautioncautiousnesswarinesscharinessalertnesshypervigilancecircumspectionprudenceheedfulnessheedmindfulnessOpposite carelessness
   • ▪ an announcement or signal warning of danger: "a bomb alert" Similar warningcautionnotificationnoticeexhortationinjunctionsirenalarmsignaldanger signaldistress signal
   • ▪ a period of vigilance following 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 or problem: "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

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2. People also ask

   What does alert mean?

   • The meaning of ALERT is watchful and prompt to meet danger or emergency. How to use alert in a sentence. Synonym Discussion of Alert.

   Alert Definition & Meaning - Merriam-Webster

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   What is a weather alert?

   • An alert is a warning or alarm, especially an alarm about dangerous weather or a military attack, as in The National Weather Service has alerts for tornadoes, hurricanes, Nor’easters, and other severe weather occurrences. Alert is also an attitude of readiness or caution, as in Tina was on alert for news of her son’s acceptance into college.

   ALERT Definition & Meaning | Dictionary.com

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   Is alert a noun or adjective?

   • 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. The word is derived from the French a l'erte which translates to "on the watch."

   Alert - Definition, Meaning & Synonyms | Vocabulary.com

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   What is a security alert?

   • An alert is a situation in which people prepare themselves for something dangerous that might happen soon. Due to a security alert, this train will not be stopping at Oxford Circus. If you alert someone to a situation, especially a dangerous or unpleasant situation, you tell them about it. He wanted to alert people to the activities of the group.

   ALERT definition and meaning | Collins English Dictionary

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3. www.merriam-webster.com › dictionary › alertAlert Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › alert

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   Learn the meaning, synonyms, examples, and history of the word alert, which can be an adjective, noun, or verb. Alert can mean watchful, active, brisk, or a signal of danger or notice.

4. dictionary.cambridge.org › dictionary › englishALERT | English meaning - Cambridge Dictionary

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   Learn the meaning of alert as an adjective, noun, and verb in English. Find out how to use alert in different contexts, such as warning, message, or situation, with examples and pronunciation.

5. www.dictionary.com › browse › alertALERT Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › alert

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   An alert is a warning or alarm, especially an alarm about dangerous weather or a military attack, as in The National Weather Service has alerts for tornadoes, hurricanes, Nor’easters, and other severe weather occurrences.

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

   www.vocabulary.com › dictionary › alert

   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.

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

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   Learn the meaning of alert as an adjective, noun, and verb in English. Find out how to use alert in different contexts, such as warnings, messages, and situations, with examples and translations.

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

   www.collinsdictionary.com › dictionary › english

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   Learn the meaning, pronunciation, and usage of the word alert as an adjective, noun, and verb. Find out the difference between alert and irony, and see related words and phrases.

9. www.oxfordlearnersdictionaries.com › definitionalert verb - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com › definition

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   Learn the meaning, pronunciation, usage and synonyms of the verb alert, which means to warn somebody about a dangerous situation or one that requires immediate action. See examples, grammar notes and related topics.