pantomime vs roleplay

pantomime is a noun but roleplay is not a noun.

Word	Noun	Adjective	Verb	Adverb
pantomime	Yes	No	Yes	No
roleplay	No	No	Yes	No

As verbs, roleplay is a hypernym of pantomime; that is, roleplay is a word with a broader meaning than pantomime:

pantomime: act out without words but with gestures and bodily movements only
roleplay: perform on a stage or theater

Other hypernyms of pantomime include act, play, playact.

pantomime (noun)	roleplay (noun)
a performance using gestures and body movements without words

pantomime (verb)	roleplay (verb)
act out without words but with gestures and bodily movements only	perform on a stage or theater