mimer vs histrion

mimer and histrion both are nouns.

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

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

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

mimer (noun)	histrion (noun)
an actor who communicates entirely by gesture and facial expression	a theatrical performer