A grindstone being used to sharpen a chisel.
grindstone definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- Now Rare a millstone
- a revolving stone disk for sharpening bladed tools or shaping and polishing things
grindstone definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A revolving stone disk used for grinding, polishing, or sharpening tools.
- A millstone.
grindstone - Phrases/Idioms
keep one's nose to the grindstoneor have one's nose to the grindstone or put one's nose to the grindstone
to work hard and steadily
keep (one's) nose to the grindstone
To work hard and steadily.
put (one's) nose to the grindstone
To work in earnest.