1 able to think quickly; quick to notice things:
Suddenly he found himself awake and fully alert. * Two alert scientists spotted the mistake. * Try to stay alert while driving at night. * an alert mind * mentally alert
2 ~ to sth aware of sth, especially a problem or danger:
We must be alert to the possibility of danger. * She was alert to the slightest sound.
alertly adjective
alertness noun [U]
verb [oftenpassive]
1 to warn sb about a dangerous or urgent situation:
[VN] Neighbours quickly alerted the emergency services. * Alerted by a noise downstairs, he sat up and turned on the light. [also VN(that), VNtoinf]
2 [VN] ~ sb to sth to make sb aware of sth:
They had been alerted to the possibility of further price rises.
Part of speech: noun
1 [sing.,U] a situation in which people are watching for danger and ready to deal with it:
Police are warning the public to be on the alert for suspicious packages. * More than 5000 troops have been placed on (full) alert.
2 [C] a warning of danger or of a problem:
a bomb / fire alert
seealsoREDALERT
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About this entry
This is a English–English dictionary entry.
Sourced from Main Dictionary in Lughet's collection.
This word also appears under other sources in Lughet's collection — see the list below.
This entry for alert is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is alert a noun, verb, or something else?
In this entry, alert is tagged as adjective.
Does alert appear elsewhere on Lughet?
Yes — alert appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.
