THESAURUS
Quash
abate, abrogate, annihilate, annul, asphyxiate, black out, bottle up, cancel, censor, choke, choke off, clamp down on, cork, cork up, crack down on, crush, damp down, discharge, dissolve, drown, extinguish, gag, hold down, hugger-mugger, hush, hush up, hush-hush, invalidate, jump on, keep down, keep under, kill, muffle, muzzle, negate, nullify, overrule, overthrow, overwhelm, pour water on, put down, put out, quell, quench, reject, repress, rescind, reverse, revoke, set aside, shush, shut down on, silence, sit down on, sit on, smash, smother, snuff out, squash, squelch, stamp out, stanch, stifle, strangle, stultify, subdue, suffocate, suppress, throttle, throw out, trample out, trample underfoot, undo, vacate, vitiate, void
ROGET THESAURUS
Quash
Abrogation
VB
abrogate, annul, cancel, destroy, abolish, revoke, repeal, rescind, reverse, retract, recall, abolitionize, overrule, override, set aside, disannul, dissolve, quash, nullify, declare null and void, disestablish, disendow, deconsecrate, disclaim, ignore, repudiate, recant, divest oneself, break off, countermand, counter order, do away with, sweep away, brush away, throw overboard, throw to the dogs, scatter to the winds, cast behind, dismiss, discard, cast off, turn off, cast out, cast adrift, cast out of doors, cast aside, cast away, send off, send away, send packing, send about one's business, discharge, get rid of, bounce, fire, fire out, sack, cashier, break, oust, unseat, unsaddle, unthrone, dethrone, disenthrone, depose, uncrown, unfrock, strike off the roll, disbar, disbench, be abrogated, receive its quietus, walk the plank.
Destruction
VB
be destroyed, perish, fall to the ground, tumble, topple, go to pieces, fall to pieces, break up, crumble to dust, go to the dogs, go to the wall, go to smash, go to shivers, go to wreck, go to pot, go to wrack and ruin, go by the board, go all to smash, be all over, be all up, be all with, totter to its fall, destroy, do away with, make away with, nullify, annual, sacrifice, demolish, tear up, overturn, overthrow, overwhelm, upset, subvert, put an end to, seal the doom of, do in, do for, dish, undo, break up, cut up, break down, cut down, pull down, mow down, blow down, beat down, suppress, quash, put down, do a job on, cut short, take off, blot out, dispel, dissipate, dissolve, consume, smash, crash, quell, squash, squelch, crumple up, shatter, shiver, batter to pieces, tear to pieces, crush to pieces, cut to pieces, shake to pieces, pull to pieces, pick to pieces, laniate, nip, tear to rags, tear to tatters, crush to atoms, knock to atoms, ruin, strike out, throw over, knock down over, fell, sink, swamp, scuttle, wreck, shipwreck, engulf, ingulf, submerge, lay in ashes, lay in ruins, sweep away, erase, wipe out, expunge, raze, level with the dust, level with the ground, waste, atomize, vaporize, deal destruction, desolate, devastate, lay waste, ravage gut, disorganize, dismantle, devour, swallow up, sap, mine, blast, bomb, blow to smithereens, drop the big one, confound, exterminate, extinguish, quench, annihilate, snuff out, put out, stamp out, trample out, lay in the dust, trample in the dust, prostrate, tread under foot, crush under foot, trample under foot, lay the ax to the root of, make short work of, make clean sweep of, make mincemeat of, cut up root and branch, chop into pieces, cut into ribbons, fling to the winds, scatter to the winds, throw overboard, strike at the root of, sap the foundations of, spring a mine, blow up, ravage with fire and sword, cast to the dogs, eradicate.