histrion vs performer

histrion and performer both are nouns.

Word	Noun	Adjective	Verb	Adverb
histrion	Yes	No	No	No
performer	Yes	No	No	No

As nouns, performer is a hypernym of histrion; that is, performer is a word with a broader meaning than histrion:

histrion: a theatrical performer
performer: an entertainer who performs a dramatic or musical work for an audience

Other hypernyms of histrion include performing artist.

histrion (noun)	performer (noun)
a theatrical performer	an entertainer who performs a dramatic or musical work for an audience