whistles

the coach whistles to signal the start of the game.

she whistles a cheerful tune while she works.

the train whistles as it approaches the station.

he whistles to get the dog's attention.

the referee whistles to signal a foul.

she can whistle perfectly in tune with the song.

the bird whistles sweetly in the morning.

he always whistles when he is happy.

she learned to whistle with her fingers.

the wind whistles through the trees at night.