ホイッスルホイッスルCommon wordFreq.FrequencyTop 50,000Meanings1nounwhistleRefers to the instrument that produces a whistling sound, commonly used in sports, traffic control, or as a signal.審しん判ぱんがホイッスルを吹ふいた。The referee blew the whistle.緊きん急きゅう時じに備そなえてホイッスルを持もち歩あるいている。I carry a whistle in case of emergency.