Nihon vs Volcano Islands

Nihon and Volcano Islands both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nihon	Yes	No	No	No
Volcano Islands	Yes	No	No	No

Nihon (noun)	Volcano Islands (noun)
a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building	a group of Japanese Islands in the northwestern Pacific Ocean to the north of the Marianas