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