whistle

An inexpensive fipple flute.

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”

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

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

Move with, or as with, a whistling sound.

“The bullets whistled past him”

Utter or express by whistling.

“She whistled a melody”

Make a whining, ringing, or whistling sound.

Give a signal by whistling.

“She whistled for her maid”

Make whistling sounds.

Move, send, or bring as if by whistling.

“Her optimism whistled away these worries”