Source : Webster's Revised Unabridged Dictionary (1913)

Shogunate \Sho*gun"ate\, n.
   The office or dignity of a Shogun. [Written also
   {Siogoonate}.]

Source : WordNet®

shogunate
     n : 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}, {Stalinism},
          {totalitarianism}, {tyranny}]