Chico vs Chico Marx

Chico and Chico Marx both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chico	Yes	No	No	No
Chico Marx	Yes	No	No	No

As nouns, Chico and Chico Marx are synonyms defined as:

Chico and Chico Marx: United States comedian; one of four brothers who made motion pictures together (1891-1961)

Other synonyms of Chico include Leonard Marx, Marx.

Chico (noun)	Chico Marx (noun)
United States comedian; one of four brothers who made motion pictures together (1891-1961)	United States comedian; one of four brothers who made motion pictures together (1891-1961)