Whet·stone n. A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools.
The dullness of the fools is the whetstone of the wits. --Shak.
Diligence is to the understanding as the whetstone to the razor. --South.
Note: ☞ Some whetstones are used dry, others are moistened with water, or lubricated with oil.
To give the whetstone, to give a premium for extravagance in falsehood. [Obs.]
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