ALERT as NOUN

1. Meaning
   • an automatic signal (usually a sound) warning of danger
   
   Synonym(s)
   • alarm (what does alarm mean?)
   • alarum (what does alarum mean?)
   • warning signal (what does warning signal mean?)
   
   Hypernyms(s) alert is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • signal (what does signal mean?)
   • signaling (what does signaling mean?)
   • sign (what does sign mean?)
   
   Hyponym(s)
   • torpedo (what does torpedo mean?)
   • air alert (what does air alert mean?)
   • burglar alarm (what does burglar alarm mean?)
   • fire alarm (what does fire alarm mean?)
   • foghorn (what does foghorn mean?)
   • fogsignal (what does fogsignal mean?)
   • horn (what does horn mean?)
   • red flag (what does red flag mean?)
   • siren (what does siren mean?)
   • tocsin (what does tocsin mean?)
   • alarm bell (what does alarm bell mean?)
   
   Derived(s)
   • alarm (what does alarm mean?)
   • alert (what does alert mean?)
2. Meaning
   • a warning serves to make you more alert to danger
   
   Synonym(s)
   • alerting (what does alerting mean?)
   
   Hypernyms(s) alert is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • warning (what does warning mean?)
   
   Hyponym(s)
   • Emergency Alert System (what does Emergency Alert System mean?)
   • EAS (what does EAS mean?)
   
   Derived(s)
   • alarm (what does alarm mean?)
   • alert (what does alert mean?)
3. Meaning
   • condition of heightened watchfulness or preparation for action
   
   Synonym(s)
   • qui vive (what does qui vive mean?)
   
   Usage Example(s)
   • bombers were put on alert during the crisis
   
   Hypernyms(s) alert is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • readiness (what does readiness mean?)
   • preparedness (what does preparedness mean?)
   • preparation (what does preparation mean?)
   
   Hyponym(s)
   • air alert (what does air alert mean?)
   • red alert (what does red alert mean?)
   • strip alert (what does strip alert mean?)
   
   Derived(s)
   • alarm (what does alarm mean?)
   • alert (what does alert mean?)

ALERT as VERB

1. Meaning
   • warn or arouse to a sense of danger or call to a state of preparedness
   
   Synonym(s)
   • alarm (what does alarm mean?)
   
   Usage Example(s)
   • The empty house alarmed him
   • We alerted the new neighbors to the high rate of burglaries
   
   Hypernyms(s) alert is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • warn (what does warn mean?)
   
   Hyponym(s)
   • wake (what does wake mean?)
   
   Derived(s)
   • alert (what does alert mean?)
   • qui vive (what does qui vive mean?)
   • alarm (what does alarm mean?)
   • alert (what does alert mean?)
   • warning signal (what does warning signal mean?)
   • alarum (what does alarum mean?)
   • alert (what does alert mean?)
   • alerting (what does alerting mean?)
   • alarm (what does alarm mean?)
   • dismay (what does dismay mean?)
   • consternation (what does consternation mean?)

ALERT as ADJECTIVE

1. Meaning
   • very attentive or observant
   
   Usage Example(s)
   • an alert and responsive baby is a joy
   • 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
   
   Antonym(s)
   • unalert (what does unalert mean?)
   
   Similar To
   • argus-eyed (what does argus-eyed mean?)
   • open-eyed (what does open-eyed mean?)
   • vigilant (what does vigilant mean?)
   • wakeful (what does wakeful mean?)
   • watchful (what does watchful mean?)
   • fly (what does fly mean?)
   • heads-up (what does heads-up mean?)
   • wide-awake (what does wide-awake mean?)
   • lidless (what does lidless mean?)
   • sleepless (what does sleepless mean?)
   • on the alert(p) (what does on the alert(p) mean?)
   • on the job(p) (what does on the job(p) mean?)
   • perched (what does perched mean?)
   • perked (what does perked mean?)
   • perked up (what does perked up mean?)
   
   See Also
   • awake(p) (what does awake(p) mean?)
   • lively (what does lively mean?)
   • wary (what does wary mean?)
2. Meaning
   • (usually followed by `to”) showing acute awareness
   • mentally perceptive
   
   Synonym(s)
   • alive(p) (what does alive(p) mean?)
   • awake(p) (what does awake(p) mean?)
   
   Usage Example(s)
   • 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
   
   Similar To
   • aware(p) (what does aware(p) mean?)
3. Meaning
   • not unconscious
   • especially having become conscious
   
   Synonym(s)
   • awake(p) (what does awake(p) mean?)
   
   Usage Example(s)
   • the patient is now awake and alert
   
   Similar To
   • conscious (what does conscious mean?)
4. Meaning
   • mentally responsive
   
   Usage Example(s)
   • an alert mind
   
   Similar To
   • intelligent (what does intelligent mean?)