Father vs Saint Augustine

Father and Saint Augustine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Father	Yes	No	No	No
Saint Augustine	Yes	No	No	No

Father (noun)	Saint Augustine (noun)
`Father' is a term of address for priests in some churches (especially the Roman Catholic Church or the Orthodox Catholic Church); `Padre' is frequently used in the military	a resort city in northeastern Florida; the oldest city in the United States
God when considered as the first person in the Trinity	(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)
(Christianity) any of about 70 theologians in the period from the 2nd to the 7th century whose writing established and confirmed official church doctrine; in the Roman Catholic Church some were later declared saints and became Doctor of the Church; the best known Latin Church Fathers are Ambrose, Augustine, Gregory the Great, and Jerome; those who wrote in Greek include Athanasius, Basil, Gregory Nazianzen, and John Chrysostom