Yeddo vs Edo

Yeddo and Edo both are nouns.

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

As nouns, Yeddo and Edo are synonyms defined as:

Yeddo and Edo: the capital and largest city of Japan; the economic and cultural center of Japan

Other synonyms of Yeddo include capital of Japan, Japanese capital, Tokio, Tokyo, Yedo.

Yeddo (noun)	Edo (noun)
the capital and largest city of Japan; the economic and cultural center of Japan	the capital and largest city of Japan; the economic and cultural center of Japan
	a member of a west African people living in the tropical forest region of southern Nigeria