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Definition of whistle:

  1. A sharp, shrill, more or less musical sound, made by forcing the breath through a small orifice of the lips, or through or instrument which gives a similar sound; the sound used by a sportsman in calling his dogs; the shrill note of a bird; as, the sharp whistle of a boy, or of a boatswain's pipe; the blackbird's mellow whistle.
  2. An instrument in which gas or steam forced into a cavity, or against a thin edge, produces a sound more or less like that made by one who whistles through the compressed lips; as, a child's whistle; a boatswain's whistle; a steam whistle ( see Steam whistle, under Steam).
  3. The mouth and throat; - so called as being the organs of whistling.
  4. To form, utter, or modulate by whistling; as, to whistle a tune or an air.
  5. To make a kind of musical sound, or series of sounds, by forcing the breath through a small orifice formed by contracting the lips; also, to emit a similar sound, or series of notes, from the mouth or beak, as birds.
  6. To make a shrill sound with a wind or steam instrument, somewhat like that made with the lips; to blow a sharp, shrill tone.
  7. To send, signal, or call by a whistle.
  8. To sound shrill, or like a pipe; to make a sharp, shrill sound; as, a bullet whistles through the air.


spill the beans, cry, noise, blab, blare, whistling, pipe, blab out, babble out, howl, tin whistle, let the cat out of the bag, talk, babble, peach, pennywhistle, piping, sing, blast, tattle.

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