📖 WordNook

alert

adjective
  1. engaged in or accustomed to close observation
    “caught by a couple of alert cops”
    watchful
  2. mentally perceptive and responsive
    “an alert mind”
    aliveawake
  3. quick and energetic
    rattling
noun
  1. an automatic signal (usually a sound) warning of danger
    alarmwarning signalalarum
  2. a warning serves to make you more alert to danger
    alerting
  3. condition of heightened watchfulness or preparation for action
    “bombers were put on alert during the crisis”
    qui vive
verb
  1. to warn or arouse to a sense of danger or call to a state of preparedness
    “I alerted them of the impending storm.”
    alarm