whistle n


  1. Small pipe; wind instrument; noise that signals the arrival of a train; sound from a metal tube used to warn others of a train's location on the tracks.

whistle [-d] v


  1. Warble; sing; [fig.] brag; announce; assert life; give a high-minded declamation as a poet.
  2. Emit a high-pitched sound with the lips and teeth; make a lighthearted melody by pursing the lips and releasing a stream of air.
  3. Howl; rustle; make a high-pitched sound; produce an eerie noise as the wind does.