- Alert is defined as being awake and functioning at an energetic level.
An example of alert is the doctor who takes a quick nap before his next surgery so that he is well rested and ready to perform at a high level of awareness.
- Alert describes a person or thing extremely aware of what is going on with their surroundings, and is often ready to quickly respond to a possibly dangerous situation.
A mother who is at an airport with her children constantly keeping an eye on where they are and requesting they stay close is an example of someone who is being alert.
- The definition of alert is a state of awareness as to what is going on with one’s surroundings, and often causes a person to be ready to quickly respond to a possibly dangerous situation.
When a woman is walking down a dark alley at night and keeps checking behind her, it is an example of alert.
- Alert means a public method of warning people, either to give them vital information or to report danger.
An example of an alert are tornado sirens going off when a possible twister is headed in that direction.
- The definition of alert is to take action and warn people to be aware of something that has happened in the past, is presently occurring, or will happen in the future.
When a person runs from door to door ringing bells and shouting about a fire, it is an example of alerting a neighborhood to danger.
- watchful and ready, as in facing danger
- quick in thought or action; active; nimble
Origin of alertFrench alerte, earlier à l'erte ; from Italian all' erta, on the watch ; from alla, at the + erta, a lookout, high (point) ; from Vulgar Latin an unverified form ergere, for Classical Latin erigere, to erect
- a warning signal as of an expected air raid; alarm
- the period during which such a warning is in effect
- to warn to be ready or watchful: the troops were alerted
- to inform or make aware of: we alerted them to their duties
on the alert
- Vigilantly attentive; watchful: alert to danger; an alert bank guard. See Synonyms at careful.
- Mentally responsive and perceptive; quick.
- Brisk or lively in action: the bird's alert hopping from branch to branch.
- A signal that warns of attack or danger: Sirens sounded the alert for an air raid.
- A condition or period of heightened watchfulness or preparation for action: Nuclear-armed bombers were put on alert during the crisis.
transitive verba·lert·ed, a·lert·ing, a·lerts
Origin of alertFrench alerte, from Italian all' erta, on the lookout : alla, to the, on the (from Latin ad illam, to that : ad, to; see ad– + illam, feminine accusative sing. of ille, that, the; see al-1 in Indo-European roots) + erta, lookout (from past participle of ergere, to raise, from Latin ērigere; see erect).
(third-person singular simple present alerts, present participle alerting, simple past and past participle alerted)
- To give warning to.
alert - Computer Definition
(1) A sound or message that indicates some predefined event has occurred or a selected operation is about to be performed. The terms "alert" and "alarm" are sometimes used synonymously; however, an alert is more of a warning in advance, whereas an alarm signals that the event or error has occurred. See alarm.
(2) A document with urgent information about a threat or vulnerability such as CIAC Bulletins at http://ciac.llnl.gov/ciac/CIACHome.html.