tyr·an·ny /ˈtɪrəni/
  壓治統治,暴政
  Tyr·an·ny n.
  1. The government or authority of a tyrant; a country governed by an absolute ruler; hence, arbitrary or despotic exercise of power; exercise of power over subjects and others with a rigor not authorized by law or justice, or not requisite for the purposes of government.
  “Sir,” would he [Seneca] say, “an emperor mote need
  Be virtuous and hate tyranny.”   --Chaucer.
  2. Cruel government or discipline; as, the tyranny of a schoolmaster.
  3. Severity; rigor; inclemency.
  The tyranny of the open night's too rough
  For nature to endure.   --Shak.
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  tyranny
       n 1: a form of government in which the ruler is an absolute
            dictator (not restricted by a constitution or laws or
            opposition etc.) [syn: dictatorship, absolutism, authoritarianism,
             Caesarism, despotism, monocracy, one-man rule,
            shogunate, Stalinism, totalitarianism]
       2: dominance through threat of punishment and violence [syn: absolutism,
           despotism]