whistling

/ˈ(h)wɪslɪŋ/

IPA: /W IH1 S L IH0 NG/

verb
  1. 1

    To make a shrill, high-pitched sound by forcing air through the mouth. To produce a whistling sound, restrictions to the flow of air are created using the teeth, tongue and lips.

    Never whistle at a funeral.

  2. 2

    To make a similar sound by forcing air through a musical instrument or a pipe etc.

    The stream train whistled as it passed by.

  3. 3

    To move in such a way as to create a whistling sound.

    A bullet whistled past.

  4. 4

    To send, signal, or call by a whistle.

noun
  1. 1

    A shrill, breathy sound; a whistle.

Source: https://en.wiktionary.org/wiki/whistle, https://en.wiktionary.org/wiki/whistling