alert

• "The empty house alarmed him"
• "We alerted the new neighbors to the high rate of burglaries"

Synonyms

• alarmfill with apprehension or alarm; warn or arouse to a sense of danger or call to a state of preparedness; fear resulting from the awareness of danger ; a device that signals the occurrence of some undesirable event ; an automatic signal (usually a sound) warning of danger ; a clock that wakes a sleeper at some preset time

• "bombers were put on alert during the crisis"

Synonyms

• qui vivecondition of heightened watchfulness or preparation for action

Synonyms

• alertinga state of readiness to respond; a warning serves to make you more alert to danger

Synonyms

• alarmfill with apprehension or alarm; warn or arouse to a sense of danger or call to a state of preparedness; fear resulting from the awareness of danger ; a device that signals the occurrence of some undesirable event ; an automatic signal (usually a sound) warning of danger ; a clock that wakes a sleeper at some preset time
• warning signalan automatic signal (usually a sound) warning of danger
• alaruman automatic signal (usually a sound) warning of danger

• "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"

Synonyms

• watchfulengaged in or accustomed to close observation; experiencing or accompanied by sleeplessness

• "a brisk walk in the park"
• "a lively gait"
• "a merry chase"
• "traveling at a rattling rate"
• "a snappy pace"
• "a spanking breeze"

Synonyms

• briskbecome brisk; quick and energetic; imparting vitality and energy; very active
• livelyfull of life and energy; full of zest or vigor; quick and energetic; elastic; filled with events or activity; full of spirit
• merryfull of or showing high-spirited merriment; offering fun and gaiety; quick and energetic
• rattlinga rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders); used as intensifiers; extraordinarily good or great; quick and energetic
• snappyapt to speak irritably; smart and fashionable; pleasantly cold and invigorating; marked by up-to-dateness in dress and manners; quick and energetic
• spankingthe act of slapping on the buttocks; quick and energetic
• zippyquick and energetic; marked by lively action

• "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"

Synonyms

• alive(p)
• awake(p)