monologist vs performing artist

monologist and performing artist both are nouns.

Word	Noun	Adjective	Verb	Adverb
monologist	Yes	No	No	No
performing artist	Yes	No	No	No

As nouns, performing artist is a hypernym of monologist; that is, performing artist is a word with a broader meaning than monologist:

monologist: an entertainer who performs alone
performing artist: an entertainer who performs a dramatic or musical work for an audience

Other hypernyms of monologist include performer.

monologist (noun)	performing artist (noun)
an entertainer who performs alone	an entertainer who performs a dramatic or musical work for an audience