Sergei Vasilievich Rachmaninov vs Sergei Vasilievich Rachmaninoff

Sergei Vasilievich Rachmaninov and Sergei Vasilievich Rachmaninoff both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sergei Vasilievich Rachmaninov	Yes	No	No	No
Sergei Vasilievich Rachmaninoff	Yes	No	No	No

As nouns, Sergei Vasilievich Rachmaninov and Sergei Vasilievich Rachmaninoff are synonyms defined as:

Sergei Vasilievich Rachmaninov and Sergei Vasilievich Rachmaninoff: composer and piano virtuoso born in Russia (1873-1943)

Other synonyms of Sergei Vasilievich Rachmaninov include Rachmaninoff, Rachmaninov, Sergei Rachmaninoff, Sergei Rachmaninov.

Sergei Vasilievich Rachmaninov (noun)	Sergei Vasilievich Rachmaninoff (noun)
composer and piano virtuoso born in Russia (1873-1943)	composer and piano virtuoso born in Russia (1873-1943)