Hypertext Webster Gateway: "alert"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Alert \A*lert"\, n. (Mil.)
An alarm from a real or threatened attack; a sudden attack;
also, a bugle sound to give warning. ``We have had an
alert.'' --Farrow.
{On the alert}, on the lookout or watch against attack or
danger; ready to act.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Alert \A*lert"\ ([.a]*l[~e]rt"), a. [F. alerte, earlier [`a]
l'erte on the watch, fr. It. all' erta on the watch, prop.
(standing) on a height, where one can look around; erta a
declivity, steep, erto steep, p. p. of ergere, erigere, to
erect, raise, L. erigere. See {Erect}.]
1. Watchful; vigilant; active in vigilance.
2. Brisk; nimble; moving with celerity.
An alert young fellow. --Addison.
Syn: Active; agile; lively; quick; prompt.
From WordNet (r) 1.7 (wn)
alert
adj 1: very attentive or observant; "an alert and responsive baby
is a joy"; "caught by a couple of alert cops"; "alert
enough to spot the opportunity when it came";
"constantly alert and vigilant, like a sentinel on
duty" [ant: {unalert}]
2: mentally responsive; "an alert mind"
3: not unconscious; especially having become conscious; "the
patient is now awake and alert" [syn: {awake(p)}]
4: (usually followed by `to') showing acute awareness; mentally
perceptive; "alert to the problems"; "alive to what is
going on"; "awake to the dangers of her situation"; "was
now awake to the reality of his predicament" [syn: {alive(p)},
{awake(p)}]
n 1: condition of heightened watchfulness or preparation for
action: "bombers were put on alert during the crisis"
[syn: {qui vive}]
2: a warning serves to make you more alert to danger [syn: {alerting}]
3: an automatic signal (usually a sound) warning of danger
[syn: {alarm}, {warning signal}, {alarum}]
v : warn or arouse to a sense of danger or call to a state of
preparedness; "The empty house alarmed him"; "We alerted
the new neighbors to the high rate of burglaries" [syn: {alarm}]
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