Longman Dictionary of Contemporary English homepage

grindstone

noun
     
Related topics: Technology, Tools
grind‧stone [countable]
TTZ a large round stone that turns like a wheel, and is used for making tools and knives sharp when they are rubbed against it

➔ keep your nose to the grindstone

at nose1 (11)

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary