THESAURUS
nose dive
acrobatics, aerobatics, banking, beat down, belly buster, belly flop, belly whopper, break, breakdown, cannonball, chandelle, cheapen, cheapening, collapse, comedown, crabbing, crash, crash dive, cropper, cut, cut prices, decline, deflate, deflation, depreciate, depreciation, devaluate, devaluation, dip, dive, diving, downfall, drop, fall, fall in price, fishtailing, gainer, give way, glide, header, jackknife, jew down, lose altitude, lower, lowering, mark down, markdown, parachute, parachute jump, pare, pitch, plop, plummet, plummeting, plump, plunge, plunk, pounce, pounce on, pounce upon, power dive, pratfall, price cut, price fall, price reduction, pull-up, pullout, pushdown, reduce, reduction, rolling, running dive, sag, settle, shave, sideslip, skid, skin-dive, sky dive, sky-dive, slash, slump, smash, sound, spiral, stall, stationary dive, stoop, stumble, stunting, swan dive, swoop, swoop down, tactical maneuvers, tailspin, take a header, trim, tumble, volplane, zoom
