noun
EXAMPLES FROM CORPUS
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From the next room came the thwack of darts and a louder hubbub of voices.
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He hit the flaring log such a hefty thwack that it broke in two.
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Rely more on the thwack than the look.
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Somebody had procured an aluminum bat, and the traditional thwack surrendered to a whistling hum.
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The customary thwack on the bottom is still the best method for determining doneness.