name part vs theatrical role

name part and theatrical role both are nouns.

Word	Noun	Adjective	Verb	Adverb
name part	Yes	No	No	No
theatrical role	Yes	No	No	No

As nouns, theatrical role is a hypernym of name part; that is, theatrical role is a word with a broader meaning than name part:

Other hypernyms of name part include character, part, persona, role.

name part (noun)	theatrical role (noun)
the role of the character after whom the play is named	an actor's portrayal of someone in a play