Nippon vs Asian nation

Nippon and Asian nation both are nouns.

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

Nippon (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