saint vs Saint Ambrose

saint and Saint Ambrose both are nouns.

Word	Noun	Adjective	Verb	Adverb
saint	Yes	No	Yes	No
Saint Ambrose	Yes	No	No	No

saint (noun)	Saint Ambrose (noun)
person of exceptional holiness	(Roman Catholic Church) Roman priest who became bishop of Milan; the first Church Father born and raised in the Christian faith; composer of hymns; imposed orthodoxy on the early Christian church and built up its secular power; a saint and Doctor of the Church (340?-397)
model of excellence or perfection of a kind; one having no equal
a person who has died and has been declared a saint by canonization

saint (verb)	Saint Ambrose (verb)
declare (a dead person) to be a saint
hold sacred