Nihon vs Asian nation

Nihon and Asian nation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nihon	Yes	No	No	No
Asian nation	Yes	No	No	No

Nihon (noun)	Asian nation (noun)
a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building	any one of the nations occupying the Asian continent