1.  overturn(n = noun.act) turnover, upset - the act of upsetting something; "he was badly bruised by the upset of his sled at a high speed"
is a kind of inversion, upending
Derived forms verb overturn₁, verb overturn₂

2.  overturn(n = noun.act) upset - an improbable and unexpected victory; "the biggest upset since David beat Goliath"
is a kind of success

1.  overturn(v = verb.motion) tip over, tump over, turn over - turn from an upright or normal position; "The big vase overturned"; "The canoe tumped over"
is one way to turn
Derived form noun overturn₁
Sample sentences: These cars won't overturn

2.  overturn(v = verb.motion) bowl over, knock over, tip over, tump over, turn over, upset - cause to overturn from an upright or normal position; "The cat knocked over the flower vase"; "the clumsy customer turned over the vase"; "he tumped over his beer"
is one way to displace, move
Derived form noun overturn₁
Sample sentences: Somebody ----s something; Something ----s something

3.  overturn(v = verb.cognition) override, overrule, overthrow, reverse - rule against; "The Republicans were overruled when the House voted on the bill"
is one way to decree, rule
Sample sentences: Somebody ----s something; Something ----s something

4.  overturn(v = verb.social) bring down, overthrow, subvert - cause the downfall of; of rulers; "The Czar was overthrown"; "subvert the ruling class"
is one way to depose, force out
Sample sentences: Somebody ----s something; Somebody ----s somebody

5.  overturn(v = verb.communication) annul, countermand, lift, repeal, rescind, reverse, revoke, vacate - cancel officially; "He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence"
is one way to cancel, strike down
Sample sentences: Somebody ----s something; Something ----s something

6.  overturn(v = verb.change) revolutionise, revolutionize - change radically; "E-mail revolutionized communication in academe"
is one way to alter, change, modify
Sample sentences: Somebody ----s something; Something ----s something

1.  To turn or throw from a basis, foundation, or position; to overset; as, to overturn a carriage or a building. [1913 Webster]

2.  To subvert; to destroy; to overthrow. [1913 Webster]

3.  To overpower; to conquer. Milton. [1913 Webster]

   The act off overturning, or the state of being overturned or subverted; overthrow; as, an overturn of parties. [1913 Webster]

overturn, v. & n.
--v.
1 tr. cause to fall down or over; upset.
2 tr. reverse; subvert; abolish; invalidate.
3 intr. fall down; fall over.
--n. a subversion, an act of upsetting.

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.

N  inversion, eversion, subversion, reversion, retroversion, introversion, contraposition, contrariety, reversal, turn of the tide, overturn, somersault, somerset, summerset, culbute, revulsion, pirouette, transposition, transposal, anastrophy, metastasis, hyperbaton, anastrophe, hysteron proteron, hypallage, synchysis, tmesis, parenthesis, metathesis, palindrome, pronation and supination, inverted, wrong side out, wrong side up, inside out, upside down, bottom upwards, keel upwards, supine, on one's head, topsy-turvy, sens dessus dessous, inverse, reverse, opposite, top heavy, inversely, hirdy-girdy, heels over head, head over heels.

N  depression, lowering, depression, dip, abasement, detrusion, reduction, overthrow, overset, overturn, upset, prostration, subversion, precipitation, bow, courtesy, curtsy, genuflexion, genuflection, kowtow, obeisance, salaam, depressed, at a low ebb, prostrate, detrusive, facinus quos inquinat aequat.

VB  depress, lower, let down, take down, let down a peg, take down a peg, cast, let drop, let fall, sink, debase, bring low, abase, reduce, detrude, pitch, precipitate, overthrow, overturn, overset, upset, subvert, prostate, level, fell, cast down, take down, throw down, fling down, dash down, pull down, cut down, knock down, hew down, raze, raze to the ground, rase to the ground, trample in the dust, pull about one's ears, sit, sit down, couch, squat, crouch, stoop, bend, bow, courtesy, curtsy, bob, duck, dip, kneel, bend the knee, bow the knee, bend the head, bow the head, cower, recline.