overturn
1. [ verb ] turn from an upright or normal position
Synonyms: tip_over tump_over turn_over
Examples:

"The big vase overturned" "The canoe tumped over"

Related terms: turn capsize upend upset
2. [ verb ] cause to overturn from an upright or normal position
Synonyms: knock_over turn_over bowl_over upset tump_over tip_over
Examples:

"The cat knocked over the flower vase" "the clumsy customer turned over the vase" "he tumped over his beer"

Related terms: move upset
3. [ verb ] rule against
Synonyms: override reverse overthrow overrule
Examples:

"The Republicans were overruled when the House voted on the bill"

Related terms: rule reversal
4. [ verb ] (politics) cause the downfall of; of rulers
Synonyms: overthrow subvert bring_down
Examples:

"The Czar was overthrown" "subvert the ruling class"

Related terms: depose revolutionize subversion
5. [ verb ] annul by recalling or rescinding
Synonyms: rescind repeal lift countermand reverse annul vacate revoke
Examples:

"He revoked the ban on smoking" "lift an embargo" "vacate a death sentence"

Related terms: cancel renege reverse abrogation reversal vacation revocation
6. [ noun ] the act of upsetting something
Synonyms: turnover upset
Examples:

"he was badly bruised by the upset of his sled at a high speed"

Related terms: inversion
7. [ verb ] change radically
Synonyms: revolutionize revolutionise
Examples:

"E-mail revolutionized communication in academe"

Related terms: change revolution
8. [ noun ] an improbable and unexpected victory
Synonyms: upset
Examples:

"the biggest upset since David beat Goliath"

Related terms: success upset
Similar spelling:   overturned
  overturning
  overt
  Overturf
  overture
  Overton
  overtone
  overdraft
  overtaking
  ovrette
  overtop
  overtly
  overtax
  overeat
  overdue
  overthrown
  overtire
  overtime
  overtake
  overdraw