From WordNet (r) 3.0 (2006) :
Stalinism
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]