alert

[uh-lurt]
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adjective

fully aware and attentive; wide-awake; keen: an alert mind.
swift; agile; nimble.

noun

verb (used with object)


Nearby words

  1. aleppo boil,
  2. aleppo gall,
  3. aleppo pine,
  4. alerce,
  5. alerion,
  6. alertly,
  7. alertness,
  8. alesia,
  9. alessandra,
  10. alessandri

Idioms

    on the alert, on guard against danger; in readiness; vigilant: The state police are on the alert for an escaped convict believed to be in the area.

Origin of alert

1590–1600; 1940–45 for def 4; < Italian all'erta, equivalent to all(a) to, on the + erta lookout, watchtower, orig. feminine of erto, past participle of ergere < Latin ērigere to erect

Related formsa·lert·ly, adverba·lert·ness, nounhy·per·a·lert, adjectiveun·a·lert·ed, adjective

Synonym study

1. 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: The tourist was alert and eager to see the sights. Vigilant suggests some immediate necessity for keen, active observation, and for continuing alertness: Knowing the danger, the scout was unceasingly vigilant. Watchful suggests carefulness and preparedness: watchful waiting.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for alerted


British Dictionary definitions for alerted

alert

adjective (usually postpositive)

vigilantly attentivealert to the problems
brisk, nimble, or lively

noun

an alarm or warning, esp a siren warning of an air raid
the period during which such a warning remains in effect
on the alert
  1. on guard against danger, attack, etc
  2. watchful; readyon the alert for any errors

verb (tr)

to warn or signal (troops, police, etc) to prepare for action
to warn of danger, an attack, etc
Derived Formsalertly, adverbalertness, noun

Word Origin for alert

C17: from Italian all'erta on the watch, from erta lookout post, from ergere to build up, from Latin ērigere; see erect

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for alerted

alert

adv.

"on the watch," 1590s, from French alerte "vigilant" (17c.), from phrase à l'erte "on the watch," from Italian all'erta "to the height," from erta "lookout, high tower," noun use of fem. of erto, past participle of ergere "raise up," from Latin erigere "raise" (see erect). The adjective is attested from 1610s, the noun from 1803, and the verb from 1868. Related: Alerted; alerting.

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with alerted

alert

see on the alert.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.