Pontus vs geographical region

Pontus and geographical region both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pontus	Yes	No	No	No
geographical region	Yes	No	No	No

Pontus (noun)	geographical region (noun)
an ancient region of northern Asia Minor on the Black Sea; it reached its height under Mithridates VI but was later incorporated into the Roman Empire	a demarcated area of the Earth
(Greek mythology) ancient personification of the sea; father of Nereus