grindstone
/ˈɡraɪndstoʊn/
noun
- A revolving stone wheel used for sharpening, shaping, or smoothing tools and other objects.
- The blacksmith used a grindstone to put a fine edge on the axe.
- He sat at the grindstone, carefully sharpening his kitchen knives.
- The old grindstone in the barn was still turned by a foot pedal.
- A stone used for grinding grain into flour; a millstone.
- The grindstone was worn smooth after centuries of use.
- They poured the corn onto the grindstone and turned the handle.
- The ancient grindstone at the museum was used to make flour for the village.