I have a question of definition to but to everyone. many words that get tossed around by various groups seem to be used completely differently. for example the US government doing anything being called communism by certain groups. their also seem to be a difference between definition in Europe and America. so for the sake of clarity how would you define the following: socialism, communism, liberalism, conservatism, neoliberalism, neo conservatism, social democracy, fascism, statism an libertarianism in no particular order and in contrast to each other?
Communism: Anything that's in the intellectual tradition of Marx. Essential are the concept of class struggle, an emphasis on alienation, the belief that the proletariat needs to seize power (democratically or by revolution, there are examples of both), and the wish to erect a Socialist state in pursuit of the end goal of Communism in the Marxian sense. Bonus points for still using Marx' theory of history for that last bit.
Socialism: Anything that has at its core the communal ownership of production and a spirit of equality. Can be democratic, can be authoritarian. It does not need a theory of classes as Communism does, but it does need an idea of 'us down here' and 'them up there'. It is essential that the interests of the current owners of the means of production are not considered beyond questions of feasibility.
Social Democracy: Anything that has the same ideals as socialism, but has adopted as its methods slow, adaptive reformism and the balancing of interests. The interests of the current owners of the means of production thus do enter into the equation. It is not hostile to communal ownership, but since it does not divide between 'us' and 'them' as sharply as Socialism does, it will usually leave private ownership intact.
Conservatism: Anything that values the status quo, usually because it is seen to be doing a decent job. It emphasizes the possible negative effects of innovation more strongly than the other ideologies and the possible positive effects less so. It is not necessarily opposed to slow, deliberate reform, but radical proposals and revolutionary steps are anathema to Conservatism. Literally so, on occasion.
Liberalism: Anything that does not make judgements on aspects of peoples' lives that are irrelevant to the res publica.
Fascism: Oh boy. Anything that values action over inaction, strength over ease, decisiveness over moderation. Since all these things can only be achieved through unity and strong leadership, both are among its core principles. Since a
Rechtsstaat makes a tradeoff between these values and stability and transparency, Fascism and Rechtsstaatlichkeit are to a degree antagonistic. Do note that it may be compatible with some forms of democracy.
Statism: Anything that values control, often at the cost of efficiency or freedom. Often is a consequence of Fascism, for obvious reasons. The converse does not hold.
Anything below this line should not be taken entirely seriously. IMO these terms are only useful for a very small range of subjects.
Neoliberalism: At this point, nothing but a slogan.
Neoconservatism: In many ways the American equivalent of the above. Refers to a more or less amorphous portion of the contemporary American center-right. Not of interest beyond discussions of contemporary American politics.
Libertarianism: An umbrella term for a range of convictions. Opinions vary on whether their degree of sophistication is sufficient to consider them political ideologies.
I've purposely tried to keep these definitions fairly abstract and formal. For example, using my definitions you can imagine a Liberal Communist Fascist without contradiction. That is intentional: A Liberal Communist Fascist is not contradictory a priori, but only made contradictory by real-life considerations.