1. whetstone - Noun
2. whetstone - Verb
3. Whetstone - Proper noun
A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools.
Source: Webster's dictionaryThe finest edge is made with the blunt whetstone. John Lyly
Let the master praise him, and say, 'Here ye do well.' For, I assure you, there is no such whetstone to sharpen a good wit, and encourage a will to learning, as is praise. Roger Ascham
The devil is but a whetstone to sharpen the faith and patience of the saints. Samuel Rutherford
The whetstone in a village does no blunt the knife. Kikuyu Proverb
Emulation is the whetstone of talent. Latin Proverb
Want is the whetstone of wit. English Proverb