Saint Francis vs Roman Catholic

Saint Francis and Roman Catholic both are nouns.

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

Saint Francis (noun)	Roman Catholic (noun)
a tributary of the Mississippi River that rises in Missouri and flows southeastward through Arkansas	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
(Roman Catholic Church) an Italian and the Roman Catholic monk who founded the Franciscan order of friars (1181-1226)	a member of the Roman Catholic Church

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