What is the meaning of whistle?

noun

• The sound made by something moving rapidly or by steam coming out of a small aperture.
  • synonyms: whistling
• The act of signalling (e. G., summoning) by whistling or blowing a whistle.
  • usage: "the whistle signalled the end of the game"
  • synonyms: whistling
• 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.
  • synonyms: pennywhistle, tin whistle

verb

• Make whistling sounds.
  • usage: "He lay there, snoring and whistling"
• Move with, or as with, a whistling sound.
  • usage: "The bullets whistled past him"
• Utter or express by whistling.
  • usage: "She whistled a melody"
• Move, send, or bring as if by whistling.
  • usage: "Her optimism whistled away these worries"
• Make a whining, ringing, or whistling sound.
  • usage: "the kettle was singing"; "the bullet sang past his ear"
  • synonyms: sing
• Give a signal by whistling.
  • usage: "She whistled for her maid"