Google: Social democracy is a political, social, and economic ideology that advocates for a mixed economy within a democratic framework. It uses state intervention, regulation, and social programs to address the inequalities of capitalism and promote social justice.

Google: Socialism is a political and economic philosophy encompassing a diverse range of systems characterized by social ownership of the means of production, in contrast to capitalism's private ownership.

Google: Fascism is a far-right, authoritarian, and ultranationalist political ideology that emphasizes the nation and often race above the individual. Scholars generally agree on its defining characteristics, while noting differences between specific fascist movements throughout history.