ingenue vs histrion

ingenue and histrion both are nouns.

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

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

ingenue: an actress who specializes in playing the role of an artless innocent young girl
histrion: a theatrical performer

Other hypernyms of ingenue include actor, player, role player, thespian.

ingenue (noun)	histrion (noun)
the role of an innocent artless young woman in a play	a theatrical performer
an artless innocent young girl (especially as portrayed on the stage)
an actress who specializes in playing the role of an artless innocent young girl