
Xem thêm: alertness, alert, qui vive, alerting, alarm, warning signal, alarum, alarm, awake(p), alive(p), awake(p)
n.
bombers were put on alert during the crisis
v.
The empty house alarmed him
We alerted the new neighbors to the high rate of burglaries
adj.
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
an alert mind
the patient is now awake and alert
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