Hey OP, just in case you didn’t gather this from the various other comments, in political science, Liberalism refers to a specific movement (think John Locke, social contract theory, abolishing various aristocratic privilaeges, etc) but can be applied to modern political philosophies too. https://en.m.wikipedia.org/wiki/Liberalism

Liberalism in media terms often means something quite different depending where you are in the world. But, it typically refers to something like this: https://en.m.wikipedia.org/wiki/Social_liberalism. Pro-market, pro-welfare (to a limited degree), somewhat focused on individual freedoms, etc. It’s a wide-ranging term and can cover anything from as far right as America’s gov’t to as far left as something like Sweden’s.