alert

/ษ™หˆlษt/
noun
  1. 1

    An alarm.

  2. 2

    A notification of higher importance than an advisory.

  3. 3

    A state of readiness for potential combat.

    โ€œan airborne alert; ground alertโ€

adjective
  1. 1

    Attentive; awake; on guard.

  2. 2

    Brisk; nimble; moving with celerity.

verb
  1. 1

    To give warning to.

Source: https://en.wiktionary.org/wiki/alert