| Millstone (n.) One of two circular stones used for grinding grain or other substance. Thesaurus Entries bale, burden, burdening, burthen, cargo, charge, charging, cheese grater, comminutor, crusher, cumber, cumbrance, deadweight, drag, duty, encumbrance, freight, granulator, grater, grinder, handicap, incubus, incumbency, kominuter, lading, levigator, load, loading, masher, mill, mortar and pestle, nutmeg grater, onus, oppression, overload, overtaxing, overweighting, pestle, pressure, pulverizer, quern, quernstone, rock crusher, roller, saddling, shredder, steamroller, superincumbency, surcharge, task, tax, taxing, triturator, weight |