intransitive verb whistled -·tled, whistling -·tling

1. 1. to make a clear, shrill sound or note, or a series of these, by forcing breath between the teeth or through a narrow opening made by puckering the lips
   2. to make a similar sound by sending steam through a small opening
2. to make a clear, shrill cry: said of some birds and animals
3. to move, pass, go, etc. with a high, shrill sound, as the wind
4. 1. to blow a whistle
   2. to have its whistle blown the train whistled

Etymology: ME whistlen < OE hwistlian: for IE base see whisper

transitive verb

1. to produce (a tune, etc.) by whistling
2. to summon, signal, direct, etc. by whistling

noun

1. an instrument for making whistling sounds, as by forcing the breath or steam through a slit into a cavity or against a thin edge
2. a clear, shrill sound made by whistling or blowing a whistle
3. the act of whistling
4. a signal, summons, etc. made by whistling
5. a whistling sound, as of the wind