over·turn /ˌovɚ/
 傾覆,破滅,革命(vt.)推翻,顛倒(vi.)翻倒
 O·ver·turn v. t. [imp. & p. p. Overturned p. pr. & vb. n. Overturning.]
 1. To turn or throw from a basis, foundation, or position; to overset; as, to overturn a carriage or a building.
 2. To subvert; to destroy; to overthrow.
 3. To overpower; to conquer.
 Syn: -- To demolish; overthrow. See Demolish.
 O·ver·turn, n. The act off overturning, or the state of being overturned or subverted; overthrow; as, an overturn of parties.
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 overturn
      n 1: the act of upsetting something; "he was badly bruised by the
           upset of his sled at a high speed" [syn: upset, turnover]
      2: an improbable and unexpected victory; "the biggest upset
         since David beat Goliath" [syn: upset]
      v 1: turn from an upright or normal position; "The big vase
           overturned"; "The canoe tumped over" [syn: turn over,
           tip over, tump over]
      2: 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" [syn: tip
         over, turn over, upset, knock over, bowl over, tump
         over]
      3: rule against; "The Republicans were overruled when the House
         voted on the bill" [syn: overrule, override, overthrow,
          reverse]
      4: cause the downfall of; of rulers; "The Czar was overthrown";
         "subvert the ruling class" [syn: overthrow, subvert, bring
         down]
      5: annul by recalling or rescinding; "He revoked the ban on
         smoking"; "lift an embargo"; "vacate a death sentence"
         [syn: revoke, annul, lift, countermand, reverse,
          repeal, rescind, vacate]
      6: change radically; "E-mail revolutionized communication in
         academe" [syn: revolutionize, revolutionise]