Shogunate

from WordNet (r) 3.0 (2006)

shogunate
    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}, {tyranny}]

from The Collaborative International Dictionary of English v.0.48

Shogunate \Sho*gun"ate\ (sh[=o]*g[=oo]n"[asl]t), n.
   The office or dignity of a Shogun. [Written also
   {Siogoonate}.]
   [1913 Webster]