alert

[ uh-lurt ]
/ əˈlɜrt /

adjective

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

noun

verb (used with object)

QUIZZES

CHALLENGE YOURSELF WITH THIS MIDDLE SCHOOL PART OF SPEECH QUIZ!

How well do you know your adjectives from your adverbs? Your preposition from your pronouns? Your interjections from your conjunctions? Let’s put your knowledge of parts of speech to the text! Note: Many of the following questions will ask you to identify the parts of speech “in order.” That means the first word in all capital letters will correspond to the first option in an answer, and so on.
Question 1 of 10
In order, what parts of speech are the words in all capital letters? Alisa was VERY tired, SO she decided to go to bed.

Idioms for alert

    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

synonym study for alert

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.

OTHER WORDS FROM alert

a·lert·ly, adverba·lert·ness, nounhy·per·a·lert, adjectiveun·a·lert·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for alert

British Dictionary definitions for alert

alert
/ (əˈlɜːt) /

adjective (usually postpositive)

vigilantly attentivealert to the problems
brisk, nimble, or lively

noun

verb (tr)

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

Derived forms of alert

alertly, 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

Idioms and Phrases with alert

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.