Roman Catholic vs St. Boniface

Roman Catholic and St. Boniface both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman Catholic	Yes	Yes	No	No
St. Boniface	Yes	No	No	No

Roman Catholic (noun)	St. Boniface (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	(Roman Catholic Church) Anglo-Saxon missionary who was sent to Frisia and Germany to spread the Christian faith; was martyred in Frisia (680-754)
a member of the Roman Catholic Church

Roman Catholic (adjective)	St. Boniface (adjective)
of or relating to or supporting Romanism