I know the Wikipedia is not much of an authoritative source but the definition of Fascism they publish is what most people think Fascism is. Essentially, they describe it as:
"Fascism /ˈfæʃɪzəm/ is a form of radical authoritarian nationalism, characterized by dictatorial power, forcible suppression of opposition, and control of industry and commerce."
Moreover, they say it is part of the Right-wing political philosophy as follows:
Opposed to liberalism, Marxism, and anarchism, fascism is usually placed on the far-right within the traditional left–right spectrum.
This characterization of Fascism is almost a perfect description of Liberal/Democratic policies.