Sergei Rachmaninov vs Sergei Vasilievich Rachmaninov

Sergei Rachmaninov and Sergei Vasilievich Rachmaninov both are nouns.

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

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

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

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

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