Terre Adelie vs Adelie Coast

Terre Adelie and Adelie Coast both are nouns.

Word	Noun	Adjective	Verb	Adverb
Terre Adelie	Yes	No	No	No
Adelie Coast	Yes	No	No	No

As nouns, Terre Adelie and Adelie Coast are synonyms defined as:

Terre Adelie and Adelie Coast: a costal region of Antarctica to the south of Australia; noted for its large colonies of penguins

Other synonyms of Terre Adelie include Adelie Land.

Terre Adelie (noun)	Adelie Coast (noun)
a costal region of Antarctica to the south of Australia; noted for its large colonies of penguins	a costal region of Antarctica to the south of Australia; noted for its large colonies of penguins