Whistle
A whistle or call is a simple aerophone, an instrument which produces sound from a stream of forced air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.
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Famous quotes containing the word whistle:
“Daughter daughter whistle
And you shall have a sheep”
—Unknown. Whistle, Daughter, Whistle (l. 17–18)
“I do not know whether there be, as a rule, more vocal expression of the sentiment of love between a man and a woman, than there is between two thrushes. They whistle and call to each other, guided by instinct rather than by reason.”
—Anthony Trollope (1815–1882)
“Instead of the scream of a fish hawk scaring the fishes, is heard the whistle of the steam-engine, arousing a country to its progress.”
—Henry David Thoreau (1817–1862)