a stone, especially a whetstone, used for polishing or sharpening.
a stone used for sharpening or smoothing, esp a whetstone
- Rub the bacon
rub the bacon
noun 1. a city in the SW Russian Federation in Asia.
- Rub up on
Refresh one’s knowledge, as in I must rub up on my French before we leave for Paris. [ Second half of 1700s ]
noun, plural rubies. 1. a red variety of corundum, used as a gem. 2. something made of this stone or one of its imitations, as a bearing in a watch. 3. a deep-red port wine. 4. deep red; carmine. 5. British Printing. a 5½-point type, nearly corresponding in size to American agate. adjective 6. ruby-colored: […]