fascism

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A system of government marked by centralization of authority under a dictator, a capitalist economy subject to stringent governmental controls, violent suppression of the opposition, and typically a policy of belligerent nationalism and racism.
• noun A political philosophy or movement based on or advocating such a system of government.
• noun Oppressive, dictatorial control.

from the GNU version of the Collaborative International Dictionary of English.

• noun a political theory advocating an authoritarian hierarchical government; -- opposed to democracy and liberalism.
• noun an authoritarian system of government under absolute control of a single dictator, allowing no political opposition, forcibly suppressing dissent, and rigidly controlling most industrial and economic activities. Such regimes usually try to achieve popularity by a strongly nationalistic appeal, often mixed with racism.
• noun Specifically, the Fascist movement led by Benito Mussolini in Italy from 1922 to 1943.
• noun broadly, a tendency toward or support of a strongly authoritarian or dictatorial control of government or other organizations; -- often used pejoratively in this sense.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun historical A political regime, having totalitarian aspirations, ideologically based on a relationship between business and the centralized government, business-and-government control of the market place, repression of criticism or opposition, a leader cult and exalting the state and/or religion above individual rights. Originally only applied (usually capitalized) to Benito Mussolini's Italy.
• noun By vague analogy, any system of strong autocracy or oligarchy usually to the extent of bending and breaking the law, race-baiting and violence against largely unarmed populations.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a political theory advocating an authoritarian hierarchical government (as opposed to democracy or liberalism)