Edo vs Japan

Edo and Japan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Edo	Yes	No	No	No
Japan	Yes	No	No	No

Edo (noun)	Japan (noun)
the capital and largest city of Japan; the economic and cultural center of Japan	a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building
a member of a west African people living in the tropical forest region of southern Nigeria	a string of more than 3,000 islands to the east of Asia extending 1,300 miles between the Sea of Japan and the western Pacific Ocean