| seizure-alert dog | a dog that can alert or assist people with seizure disorders |
| air alert | the warning signal that begins a period of preparation for an enemy air attack |
alarm
alert warning signal
alarum | an automatic signal (usually a sound) warning of danger |
alert
alerting | a warning serves to make you more alert to danger |
Emergency Alert System
EAS | 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 events |
alert
qui vive | condition of heightened watchfulness or preparation for action, bombers were put on alert during the crisis |
| air alert | the condition in which combat aircraft are airborne and ready for an operation, aircraft in the Mideast are on air alert |
| 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, the Air Force will keep fighters on strip alert at bases around the country |
smog
smogginess | air pollution by a mixture of smoke and fog |
| air alert | the time period during which military and civilian agencies are prepared for an enemy air attack |
alarm
alert | warn or arouse to a sense of danger or call to a state of preparedness, The empty house alarmed him, We alerted the new neighbors to the high rate of burglaries |
alert
watchful | engaged in or accustomed to close observation, 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 |
alert
alive(p)
awake(p) | mentally perceptive and responsive,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 |
alert
brisk
lively
merry
rattling
snappy
spanking
zippy | quick and energetic, a brisk walk in the park, a lively gait, a merry chase, traveling at a rattling rate, a snappy pace, a spanking breeze |