penitent vs Roman Catholic

penitent and Roman Catholic both are nouns.

Word	Noun	Adjective	Verb	Adverb
penitent	Yes	Yes	No	No
Roman Catholic	Yes	Yes	No	No

penitent (noun)	Roman Catholic (noun)
(Roman Catholic Church) a person who repents for wrongdoing (a Roman Catholic may be admitted to penance under the direction of a confessor)	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
	a member of the Roman Catholic Church

penitent (adjective)	Roman Catholic (adjective)
feeling or expressing remorse for misdeeds	of or relating to or supporting Romanism