Rubinstein vs Anton Rubinstein

Rubinstein and Anton Rubinstein both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rubinstein	Yes	No	No	No
Anton Rubinstein	Yes	No	No	No

As nouns, Rubinstein and Anton Rubinstein are synonyms defined as:

Rubinstein and Anton Rubinstein: Russian composer and pianist (1829-1894)

Other synonyms of Rubinstein include Anton Gregor Rubinstein, Anton Grigorevich Rubinstein, Anton Rubenstein.

Rubinstein (noun)	Anton Rubinstein (noun)
Russian composer and pianist (1829-1894)	Russian composer and pianist (1829-1894)
United States pianist (born in Poland) known for his interpretations of the music of Chopin (1886-1982)