What is the meaning of Grindstone?

(n.) A flat, circular stone, revolving on an axle, for grinding or sharpening tools or shaping or smoothing objects.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). grindstone. Retrieved September 21, 2026, from http://smartdefine.org/grindstone/definitions/2013758
ChicagoWebster's. 2011. "grindstone" http://smartdefine.org/grindstone/definitions/2013758 (accessed September 21, 2026).
HarvardWebster's 2011, grindstone, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/grindstone/definitions/2013758>.
MLAWebster's. "grindstone" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/grindstone/definitions/2013758>
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