Emily Dickinson Lexicon

WHIS'TLE, n. [Sax. hwistle; L. fistula.]

1. A small wind instrument. – Bacon.
2. The sound made by a small wind instrument.
3. Sound made by pressing the breath through a small orifice of the lips.
4. The mouth; the organ of whistling. [Vulgar.]
5. A small pipe, used by a boatswain to summon the sailors to their duty; the boatswain's call. – Mar. Dict.
6. The shrill sound of winds passing among trees or through crevices, &c.
7. A call, such as sportsmen use to their dogs.