/ˈhwisəl/
He whistled a tune.
彼は口笛でメロディを奏でた。
She whistled to get his attention.
彼女は口笛を吹いて彼の注意を引いた。
The referee whistled to start the game.
審判が試合開始の合図に口笛を吹いた。
He heard a whistle.
彼は口笛を聞いた。
She gave a whistle to get his attention.
The referee blew a whistle to start the game.