Sea of Azof vs Sea of Azoff

Sea of Azof and Sea of Azoff both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sea of Azof	Yes	No	No	No
Sea of Azoff	Yes	No	No	No

As nouns, Sea of Azof and Sea of Azoff are synonyms defined as:

Sea of Azof and Sea of Azoff: a bay of the Black Sea between Russia and the Ukraine

Other synonyms of Sea of Azof include Sea of Azov.

Sea of Azof (noun)	Sea of Azoff (noun)
a bay of the Black Sea between Russia and the Ukraine	a bay of the Black Sea between Russia and the Ukraine