Odessa vs Odesa

Odessa and Odesa both are nouns.

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

As nouns, Odessa and Odesa are synonyms defined as:

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

Odessa (noun)	Odesa (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