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  1. ALERTNESS Definition & Meaning - Merriam-Webster

    watchful, vigilant, wide-awake, alert mean being on the lookout especially for danger or opportunity. watchful is the least explicit term. vigilant suggests intense, unremitting, wary watchfulness. wide …

  2. ALERTNESS | English meaning - Cambridge Dictionary

    ALERTNESS definition: 1. the state of being ready to see, understand, and act in a particular situation: 2. the state of…. Learn more.

  3. Alertness - Wikipedia

    Alertness is a state of active attention characterized by high sensory awareness. Someone who is alert is vigilant and promptly meets danger or emergency, or is quick to perceive and act.

  4. alertness noun - Definition, pictures, pronunciation and usage notes ...

    Definition of alertness noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  5. Alertness - definition of alertness by The Free Dictionary

    Define alertness. alertness synonyms, alertness pronunciation, alertness translation, English dictionary definition of alertness. adj. 1. Vigilantly attentive; watchful: alert to danger; an alert bank guard.

  6. Alertness Definition & Meaning - YourDictionary

    The quality of being alert or on the alert; briskness; nimbleness; activity. A constant intellectual alertness is required. Preparation, both military and moral, alertness and patience were his constant theme. …

  7. Alertness - Definition, Meaning & Synonyms | Vocabulary.com

    /əˈlʌtnɪs/ IPA guide Other forms: alertnesses Definitions of alertness noun a state of readiness to respond synonyms: alerting

  8. alertness, n. meanings, etymology and more | Oxford English Dictionary

    alertness, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

  9. Alertness - Meaning, Definition & English Examples

    Alertness is the state of being watchful, attentive, and quick to respond. It involves mental sharpness and readiness to notice and react to changes or potential dangers.

  10. alertness - WordReference.com Dictionary of English

    Alert, vigilant, watchful imply a wide-awake attitude, as of someone keenly aware of his or her surroundings. Alert describes a ready and prompt attentiveness together with a quick intelligence: …