noun
EXAMPLES FROM CORPUS
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He w as filing arrow heads, and the sound of the metal on the whetstone set Burun's teeth on edge.
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Hereabouts can be found, in quarry spoil, the fine-grained whetstone once transported for use in steel manufacture.
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His brain seemed to seize up when Naseby was around, whereas Stitch sharpened it, like a whetstone .