alert

Save
1 alert ˈlɚt/ adjective
1 alert
ˈlɚt/
adjective
Learner's definition of ALERT
[more alert; most alert]
: able to think clearly and to notice things
often + to

— alertly

adverb

— alertness

noun [noncount]
2 alert ˈlɚt/ noun
plural alerts
2 alert
ˈlɚt/
noun
plural alerts
Learner's definition of ALERT
[count] : something (such as a message or loud sound) that tells people there is some danger or problem : an alarm or signal of danger
[noncount] : the state of being ready for something you have been warned about (such as an attack) used with on
see also red alert

on the alert

: looking for or expecting something (such as danger or an opportunity) often + for
3 alert ˈlɚt/ verb
alerts; alerted; alerting
3 alert
ˈlɚt/
verb
alerts; alerted; alerting
Learner's definition of ALERT
[+ object]
: to give (someone) important information about a possible problem, danger, etc. : to warn (someone)
: to make (someone) aware of something
often + to
Comments & Questions
Comments & Questions
What made you want to look up alert? Include any comments and questions you have about this word.