whistle

the sound made by something moving rapidly or by steam coming out of a small aperture

the act of signalling (e.g., summoning) by whistling or blowing a whistle

“the whistle signalled the end of the game”

a small wind instrument that produces a whistling sound by blowing into it

acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound

an inexpensive fipple flute

make whistling sounds

“He lay there, snoring and whistling”

“The birds whistle in the woods”

“The woods whistle with many kinds of birds”

move with, or as with, a whistling sound

“The bullets whistled past him”

utter or express by whistling

“She whistled a melody”

move, send, or bring as if by whistling

“Her optimism whistled away these worries”

make a whining, ringing, or whistling sound

“the kettle was singing”

“the bullet sang past his ear”

give a signal by whistling

“She whistled for her maid”