alert
Adjective
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Engaged in or accustomed to close observation (synset 300092165)
"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"also:similar:
- argus-eyed, open-eyed, vigilant, wakeful - carefully observant or attentive; on the lookout for possible danger
- fly - (British informal) not to be deceived or hoodwinked
- heads-up, wide-awake - fully alert and watchful
- lidless, sleepless - always watchful
synonym: watchful -
Quick and energetic (synset 300877534)
"a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"similar: energetic - possessing or exerting or displaying energy
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Mentally perceptive and responsive (synset 300192141)
"an alert mind"; "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"
Noun
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Condition of heightened watchfulness or preparation for action (synset 114055142)
"bombers were put on alert during the crisis"hypernym: preparation, preparedness, readiness - the state of having been made ready or prepared for use or action (especially military action)hyponym:
- air alert - the condition in which combat aircraft are airborne and ready for an operation
- red alert - the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger)
- strip alert - a state of readiness for domestic defense aircraft
synonym: qui vive -
A warning serves to make you more alert to danger (synset 107239434)
hypernym: warning - a message informing of dangerinstance hyponym: eas, emergency alert system - a federal warning system that is activated by FEMA; enables the President to take over the United States airwaves to warn the whole country of major catastrophic eventssynonym: alerting
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An automatic signal (usually a sound) warning of danger (synset 106816015)
hyponym:
- torpedo - a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead
- air alert - the warning signal that begins a period of preparation for an enemy air attack
- burglar alarm - a loud warning signal produced by a burglar alarm
- fire alarm - a shout or bell to warn that fire has broken out
- foghorn, fogsignal - a loud low warning signal that can be heard by fogbound ships
- horn - a noise made by the driver of an automobile to give warning
- red flag - a flag that serves as a warning signal
- siren - a warning signal that is a loud wailing sound
- alarm bell, tocsin - the sound of an alarm (usually a bell)
Verb
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Warn or arouse to a sense of danger or call to a state of preparedness (synset 200874096)
"The empty house alarmed him"; "We alerted the new neighbors to the high rate of burglaries"hypernym: warn - notify of danger, potential harm, or riskhyponym: wake - make aware ofsynonym: alarm
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