R.C. vs papist

R.C. is not a noun while papist is a noun.

Word	Noun	Adjective	Verb	Adverb
R.C.	No	Yes	No	No
papist	Yes	Yes	No	No

As adjectives, R.C. and papist are synonyms defined as:

Other synonyms of R.C. include papistic, papistical, popish, Roman, Roman Catholic, Romanist, romish.

R.C. (noun)	papist (noun)
	an offensive term for Roman Catholics; originally, a Roman Catholic who was a strong advocate of the papacy

R.C. (adjective)	papist (adjective)
of or relating to or supporting Romanism	of or relating to or supporting Romanism