advocacy vs protagonism

advocacy and protagonism both are nouns.

Word	Noun	Adjective	Verb	Adverb
advocacy	Yes	No	No	No
protagonism	Yes	No	No	No

As nouns, advocacy and protagonism are synonyms defined as:

advocacy and protagonism: active support of an idea or cause etc.; especially the act of pleading or arguing for something

advocacy (noun)	protagonism (noun)
active support of an idea or cause etc.; especially the act of pleading or arguing for something	active support of an idea or cause etc.; especially the act of pleading or arguing for something