Whistle

usgb/ˈwɪsl/Volume
Left Definition 1 of 5Right
LampPro Tip 1/3
Attention SignalPlay
Used to grab attention in noisy environments or emergencies. SlideThe lifeguard gave three short blasts on the whistle to alert the swimmers.
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Sporting EventsPlay
Commonly used in sports to manage the play or practice sessions. SlideAt the sound of the coach's whistle, the players stopped their drill.
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Not a ToyPlay
Although it can be small, it is not for casual use due to its piercing sound. SlideThe security guard reminded the children not to play with the emergency whistle.