| Whetstone (n.) A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools. Thesaurus Entries aluminum oxide, auto polish, colcothar, corundum, crocus, emery board, emery paper, file, garnet, grindstone, hone, nail file, novaculite, oilstone, polishes, pumice, pumice stone, rasp, rottenstone, rouge, rubstone, sandpaper, shoe polish, silicon carbide, silver polish, steel, strap, strop, wax, whetrock, whetstone, whittle |