THESAURUS
millstone
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
ROGET THESAURUS
millstone
Gravity
N
gravity, gravitation, weight, heaviness, specific gravity, pondorosity, pressure, load, burden, burthen, ballast, counterpoise, lump of, mass of, weight of, lead,
millstone, mountain, Ossa on Pelion, weighing, ponderation, trutination, weights, avoirdupois weight, troy weight, apothecaries' weight, grain, scruple, drachma, ounce, pound, lb, arroba, load, stone, hundredweight, cwt, ton, long ton, metric ton, quintal, carat, pennyweight, tod, gram, centigram, milligram, microgram, kilogram, nanogram, picogram, femtogram, attogram, balance, scale, scales, steelyard, beam, weighbridge, spring balance, piezoelectric balance, analytical balance, two-pan balance, one-pan balance, postal scale, baby scale, statics, weighty, weighing, heavy as lead, ponderous, ponderable, lumpish, lumpy, cumbersome, burdensome, cumbrous, unwieldy, massive, incumbent, superincumbent.