This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A hard, fine-grained stone for honing tools. Also called snakestone.

n. 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.

n. A benchmark for evaluating the power of a computer.

n. A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools.

n. A stone for sharpening cutlery or tools by friction. Whetstones are made of various kinds of stone, the finer kinds being, a silicious slate, and when used are moistened with oil or water.

n. Figuratively, that which sharpens, stimulates, or incites the faculties or appetites.

n. a flat stone for sharpening edged tools or knives

"That was of plain black leather, but it included a pocket that had once held some small tool and recalled the whetstone pocket on the manskin sheath of _Terminus Est_."

stone   

to give    grind    hone    grindstone   

stone    whet   

hone    oilstone   

rubstone    burr    hone    oilstone   

packager    dinner-dress    stacker    machi    laurel-crowned    ircop    strop    tinderbox    clockwork    bluebell