Wilkes Land vs geographic region

Wilkes Land and geographic region both are nouns.

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

Wilkes Land (noun)	geographic 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