Wilkes Land vs geographical region

Wilkes Land and geographical region both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wilkes Land	Yes	No	No	No
geographical region	Yes	No	No	No

Wilkes Land (noun)	geographical region (noun)
a coastal region of Antarctica on the Indian Ocean to the south of Australia; most of the territory is claimed by Australia	a demarcated area of the Earth