Athanasius the Great vs theologian

Athanasius the Great and theologian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Athanasius the Great	Yes	No	No	No
theologian	Yes	No	No	No

Athanasius the Great (noun)	theologian (noun)
(Roman Catholic Church) Greek patriarch of Alexandria who championed Christian orthodoxy against Arianism; a church father, saint, and Doctor of the Church (293-373)	someone who is learned in theology or who speculates about theology