Langtolang Multilingual Dictionary

condition of heightened watchfulness or preparation for action

• “bombers were put on alert during the crisis”

a warning serves to make you more alert to danger

an automatic signal (usually a sound) warning of danger

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”

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”

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”

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”