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ENGLISH · A WORD WITH POSSIBILITIES

alert.

Attentive; awake; on guard.

5 characters2 syllables approx.English language

Meaning & usage

adj/əˈlɜːt/Received-Pronunciation/əˈlɝt/General-American
  1. Attentive; awake; on guard.

  2. brisk; nimble; moving with celerity.

    obsolete
Where this word comes from

From French alerte (“alert”), from the phrase à l'erte (“on the watch”), from Italian all'erta (“to the height”), from erta (“lookout, tower”).

noun/əˈlɜːt/Received-Pronunciation/əˈlɝt/General-American
  1. An alarm.

  2. A notification of higher importance than an advisory.

  3. A state of readiness for potential combat.

    an airborne alert; ground alert
  4. Synonym of bell (“bell character”).

Where this word comes from

From French alerte (“alert”), from the phrase à l'erte (“on the watch”), from Italian all'erta (“to the height”), from erta (“lookout, tower”).

verb/əˈlɜːt/Received-Pronunciation/əˈlɝt/General-American
  1. To give warning to.

Where this word comes from

Formed within English by conversion, from alert (adjective). Compare French alerter.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.