saint vs Saint Irenaeus

saint and Saint Irenaeus both are nouns.

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

saint (noun)	Saint Irenaeus (noun)
person of exceptional holiness	Greek theologian who was bishop of Lyons and an antiheretical writer; a saint and Doctor of the Church (circa 130-200)
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 Irenaeus (verb)
declare (a dead person) to be a saint
hold sacred