Nizhnyi Novgorod vs Nizhni Novgorod

Nizhnyi Novgorod and Nizhni Novgorod both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nizhnyi Novgorod	Yes	No	No	No
Nizhni Novgorod	Yes	No	No	No

As nouns, Nizhnyi Novgorod and Nizhni Novgorod are synonyms defined as:

Nizhnyi Novgorod and Nizhni Novgorod: an industrial city in the European part of Russia; birthplace of Maksim Gorky

Other synonyms of Nizhnyi Novgorod include Gorki, Gorkiy, Gorky, Nizhny Novgorod.

Nizhnyi Novgorod (noun)	Nizhni Novgorod (noun)
an industrial city in the European part of Russia; birthplace of Maksim Gorky	an industrial city in the European part of Russia; birthplace of Maksim Gorky