What is the meaning of whistling?

noun

• The sound made by something moving rapidly or by steam coming out of a small aperture.
  • synonyms: whistle
• The act of whistling a tune.
  • usage: "his cheerful whistling indicated that he enjoyed his work"
• The act of signalling (e. G., summoning) by whistling or blowing a whistle.
  • usage: "the whistle signalled the end of the game"
  • synonyms: whistle

verb

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