EJDict
ライセンス: CC0 (Public Domain)
日本語WordNet
condition of heightened watchfulness or preparation for action; "bombers were put on alert during the crisis"
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"
JMdict
AIによる解説
As an adjective, 'watchful' or 'quick to respond'. As a noun, 'a warning signal' or 'state of readiness'. As a verb, 'to warn'. Widely used in situations requiring attention or caution.
ライセンス: KeyLang Original
He pressed the automobile horn to alert the pedestrian.
彼は歩行者に警告するためにクラクションを鳴らした。
The notification system alerts residents immediately when emergencies occur in their area.
通知システムは、その地域で緊急事態が発生したときに住民に即座に警告する。
Caffeine can temporarily increase mental alertness.
カフェインは一時的に精神的な覚醒度を高めることができます。
Pronunciation data from ipa-dict (MIT License) based on cmudict-ipa by @lingz