ham vs histrion

ham and histrion both are nouns.

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

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

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

ham (noun)	histrion (noun)
meat cut from the thigh of a hog (usually smoked)	a theatrical performer
an unskilled actor who overacts
a licensed amateur radio operator

ham (verb)	histrion (verb)
exaggerate one's acting