Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition
  • adj. Vigilantly attentive; watchful: alert to danger; an alert bank guard. See Synonyms at aware.
  • adj. Mentally responsive and perceptive; quick.
  • adj. Brisk or lively in action: the bird's alert hopping from branch to branch.
  • n. A signal that warns of attack or danger: Sirens sounded the alert for an air raid.
  • n. A condition or period of heightened watchfulness or preparation for action: Nuclear-armed bombers were put on alert during the crisis.
  • v. To notify of approaching danger or action; warn: a flashing red light that alerted motorists to trouble ahead.
  • idiom. on the alert Watchful and prepared for danger, emergency, or opportunity: bird watchers on the alert for a rare species.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adj. Attentive; awake; on-guard.
  • n. An alarm.
  • n. A notification of higher importance than an advisory.
  • v. To give warning to.
  • the GNU version of the Collaborative International Dictionary of English
  • adj. Watchful; vigilant; active in vigilance.
  • adj. Brisk; nimble; moving with celerity.
  • n. An alarm from a real or threatened attack; a sudden attack; also, a bugle sound to give warning.
  • The Century Dictionary and Cyclopedia
  • Active in vigilance; watchful; vigilantly attentive.
  • Moving with celerity; brisk; active; nimble: as, “an alert young fellow,” Addison, Spectator, No. 403.
  • Lively, agile, quick, prompt, ready, spry.
  • n. An attitude of vigilance; watch; guard: especially in the phrase on or upon the alert, upon the watch; on the lookout; guarding against surprise or danger: as, “the readiness of one on the alert,” Dickens.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • adj. engaged in or accustomed to close observation
  • adj. mentally perceptive and responsive
  • v. warn or arouse to a sense of danger or call to a state of preparedness
  • adj. quick and energetic
  • n. a warning serves to make you more alert to danger
  • n. condition of heightened watchfulness or preparation for action
  • n. an automatic signal (usually a sound) warning of danger
  • Equivalent
    vigilant    fly    wide-awake    Argus-eyed    heads-up    sleepless    lidless    wakeful    open-eyed    cognisant   
    Verb Form
    alerted    alerting    alertness    alerts   
    Cross Reference
    Words with the same meaning
    lively    quick    active    prompt    agile    watchful    vigilant    brisk    nimble   
    Words with the same terminal sound
    Bert    Curt    Evert    Insert    Kurt    assert    avert    birt    blurt    burt   
    Same Context
    Words that are found in similar contexts
    intelligent    eager    watchful    keen    attentive    confident    able    shrewd