Colchis vs geographical region

Colchis and geographical region both are nouns.

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

Colchis (noun)	geographical region (noun)
(Greek mythology) a region on the Black Sea to the south of the Caucasus that was the site of an ancient country where (according to Greek mythology) Jason sought the Golden Fleece	a demarcated area of the Earth