What is another word for whistle blows?
Pronunciation: [wˈɪsə͡l blˈə͡ʊz] (IPA) 
The phrase "whistle blows" is commonly used to indicate the start or end of an event, or to alert individuals to a certain action required of them. Alternative synonyms for "whistle blows" are plentiful. Examples include "horn sounds," "bell chimes," "siren wails," "alarm blares," and "buzzer sounds." These phrases all convey a sense of urgency and serve as attention-grabbing signals. Within specific contexts, there may be additional synonyms that more aptly fit the situation, such as "bugle call" for a military reveille, or "starting gun" for a race. Regardless of the descriptor, the sound of a whistle blowing carries a powerful significance in terms of signaling a beginning or end, or indicating a necessary response.
