Definition of "whetstone" in English

noun

1. A sharpening stone; a hard stone or piece of synthetically bonded hard minerals that has been formed with at least one flat surface, used to sharpen or hone an edged tool.

2. (figurative) A stimulant.

3. (computing) Alternative letter-case form of Whetstone (“benchmark”).

verb

1. (transitive) To sharpen with a whetstone.

   • Near-synonym: hone (verb)