Adelie Land vs Antarctica

Adelie Land and Antarctica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Adelie Land	Yes	No	No	No
Antarctica	Yes	No	No	No

Adelie Land (noun)	Antarctica (noun)
a costal region of Antarctica to the south of Australia; noted for its large colonies of penguins	an extremely cold continent at the south pole almost entirely below the Antarctic Circle; covered by an ice cap up to 13,000 feet deep