Yes, the noun liberator is a common noun, a word for any liberator of anything anywhere.
A proper noun is the name of a specific person, place, thing, or a title; for example:
The Boston Globe is extremely liberal in that it represents the word and voice of the common people. It caters to public fancies and whims, including what is in popular culture at the time.
LIBERAL LIBERAL LIBERAL LIBERAL LIBERAL LIBERAL
They all know what is going on in the world around them. They are well informed and DO NOT have mush for brains
liberal vs. conservative, which somewhat correlates to Democrat vs. Republican
liberal = liberal
"More liberal" is the comparative form of liberal. "Most liberal" is the superlative form.
liberal kansas liberal kansas liberal kansas
NoAdded: Not in the STRICTEST sense of the definitions. However you could be a Conservative with liberal views on some subjects (often referred to as a "Moderate" Conservative") or you could be a Liberal with conservative views on some subjects (identified as a "Moderate" Liberal).
Liberal
A: Liberal
He is Liberal
Liberal.