Meaning of the word grindstone in English

What does grindstone mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

grindstone

US /ˈɡraɪnd.stoʊn/
UK /ˈɡraɪnd.stəʊn/

Noun

a revolving stone disk used for grinding, sharpening, or polishing

Example:
He sharpened his axe on the old grindstone.
The sculptor used a small grindstone to refine the edges of his work.