Saint Dominic vs Roman Catholic

Saint Dominic and Roman Catholic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saint Dominic	Yes	No	No	No
Roman Catholic	Yes	Yes	No	No

Saint Dominic (noun)	Roman Catholic (noun)
(Roman Catholic Church) Spanish priest who founded an order whose members became known as Dominicans or Black Friars (circa 1170-1221)	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
	a member of the Roman Catholic Church

Saint Dominic (adjective)	Roman Catholic (adjective)
	of or relating to or supporting Romanism