saint vs Augustine of Hippo

saint and Augustine of Hippo both are nouns.

Word	Noun	Adjective	Verb	Adverb
saint	Yes	No	Yes	No
Augustine of Hippo	Yes	No	No	No

saint (noun)	Augustine of Hippo (noun)
person of exceptional holiness	(Roman Catholic Church) one of the great Fathers of the early Christian church; after a dramatic conversion to Christianity he became bishop of Hippo Regius in North Africa; St. Augustine emphasized man's need for grace (354-430)
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)	Augustine of Hippo (verb)
declare (a dead person) to be a saint
hold sacred