WHISTLER
- A person who whistles
- one that whistles (to make a shrill, clear musical sound) [n WHISTLERS]
- An atmospheric radio disturbance heard as a whistle that falls in pitch, caused by lightning
- A robust Australasian and Indonesian songbird with a strong and typically hooked bill and a loud melodious call
- one that whistles (to make a shrill sound) [n -S]