Odesa vs Odessa

Odesa and Odessa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Odesa	Yes	No	No	No
Odessa	Yes	No	No	No

As nouns, Odesa and Odessa are synonyms defined as:

Odesa and Odessa: a port city of south central Ukraine on an arm of the Black Sea

Odesa (noun)	Odessa (noun)
a port city of south central Ukraine on an arm of the Black Sea	a port city of south central Ukraine on an arm of the Black Sea
	a city in western Texas