motion, n. movement, activity; gesture, signal, gesticulation; port, gait; impulse.  Antonyms:  inertia, rest, stagnation, immobility, quiescence, repose.

motionless, a. stationary, inert, stagnant, quiescent.

motive, n. incentive, inducement, incitement.

mottled, a. piebald, party-colored, spotted.

mould, n. matrix, matrice; pattern, model; mouldiness, mildew, blight, smut, fungus.

mould, v. form, shape, model, cast; knead.

mouldy, a. musty, mildewed, fusty, decaying.

moult, v. mew, exuviate.

moulting, n. exuviation.

mount, v. ascend; bestride.

mountain, n. mount.  Associated Words:  orology, orography, orogeny, montiform, butte, arete, spur, montanic, intermontane, oread, mountainous, ultramontane, bergstock, subalpine, alpenstock, range, ridge, submontane, alpestrine.

mountebank, n. quack; charlatan, impostor, empiric.

mourn, v. deplore, lament, regret, grieve, repine, sorrow, bemoan, bewail.

mournful, a. sorrowful, lugubrious, doleful, woful.

mourning, n. sorrow, grief, bereavement; weeds.

mouse, n. murine, rodent; pl. mice, vermin.

mousing, a. meddlesome, prying, intrusive.

mouthpiece, n. embouchure; spokesman.

movable, a. portable, mobile.  Antonyms:  immovable, fast, immobile.

move, v. transfer; migrate, immigrate, emigrate, remove; impel, propel, actuate, influence; budge, stir.

movement, n. motion, locomotion, transference, removal.

movement cure. kinesiatrics, kinesitherapy, lingism.

moving, a. motive.

mow, v. reap.

mowing, n. reaping.

mucus, n. phlegm.

mud, n. mire, ooze, muck; silt.

mud bath. illutation.

muddiness, n. turbidness, feculence, obscurity, miriness.

muddle, v. confuse, fuddle, bewilder.

muddle, n. confusion.

muddled, a. confused, addled.

muddy, a. feculent, turbid, roily; opaque, intransparent, confused, involved, incoherent.

mud-eating, a. limivorous.

muffle, v. wrap, envelop; deaden, subdue.

muffler, n. scarf, tippet.

mulct, n. fine, amercement.

mule, n. hybrid, hinny.

mule-driver, n. muleteer.

mulish, a.  See stubborn.

mull, v. ruminate, ponder, cogitate.

mulligrubs, n. (Slang) colic.

multitude, n. crowd, throng, host.

mum, a. silent, speechless, dumb, mute.

mumble, v. mutter, maunder, mump.

mumbling, a. muttering, inarticulate, indistinct, incoherent.

mummery, n. masquerade, mimicry.

mumpish, a. moody, sullen, morose, sulky, unamiable.

mumps, n. parotitis; sullenness, the sulks.

munch, v. craunch.

murder, n. homicide.

murderer, n. homicide.