Help me understand America

The rest of the world:
Liberalism: Low taxes, small government, small public sector and large individual freedom.
Socialism: High taxes, large government, large public sector and possibly limited individual freedom (in favor of collectivism).
Conservatism: Not considered an ideology per se and essence depends largely on the country and that country's history.

America:
Liberalism: High taxes (?), large government (?), large public sector (?). Limited individual freedoms (?)
Socialism: Same as liberalism?
Conservatism: European liberalism but with elements of traditional Christian values?

I'm not at all sure about America, but I often hear "liberal" and "socialist" used interchangeably (or the former referred to as "the left"). And what exactly is conservatism in America? Do you have other important ideologies? Correct or fill in the blanks please.

It's strange, we only have two major parties and they both contradict themselves. Republicans are economic liberals in the European sense, they are proponents of Capitalism and the free market, yet socially they call for a form of theocracy. The Democrats like non-religiously influenced personal liberties but their economic model is socialism. Basically the Libertarian party is the only party that fully falls under the European definition of liberalism. The European definition of liberal makes more sense, here it tends to mean that the party is liberal with the powers of government, IE, socialism.