n.
1.the sound made by something moving rapidly or by steam coming out of a small aperture
2.the act of signalling (e.g., summoning) by whistling or blowing a whistle
3.acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound
4.an inexpensive fipple flute whistle v.
1.make whistling sounds
2.move with, or as with, a whistling sound
3.utter or express by whistling
4.move, send, or bring as if by whistling
5.make a whining, ringing, or whistling sound
6.give a signal by whistling