Nippon vs Asian country

Nippon and Asian country both are nouns.

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

Nippon (noun)	Asian country (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