overturn

(n) the act of upsetting something
- he was badly bruised by the upset of his sled at a high speed
turnover, upset,
(n) an improbable and unexpected victory
- the biggest upset since David beat Goliath
upset,

(v) turn from an upright or normal position
- The big vase overturned
- The canoe tumped over
tip over, tump over, turn over,
(v) 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
bowl over, knock over, tip over, tump over, turn over, upset,
(v) rule against
- The Republicans were overruled when the House voted on the bill
override, overrule, overthrow, reverse,
(v) cause the downfall of; of rulers
- The Czar was overthrown
- subvert the ruling class
overthrow, subvert, bring down,
(v) cancel officially
- He revoked the ban on smoking
- lift an embargo
- vacate a death sentence
countermand, repeal, rescind, annul, revoke, vacate, reverse, lift,
(v) change radically
- E-mail revolutionized communication in academe
revolutionize, revolutionise,

turnover upset tip over tump over turn over bowl over knock over override overrule overthrow reverse subvert bring down countermand repeal rescind annul revoke vacate lift revolutionize revolutionise

overture

overturned