dumb show vs pantomime

dumb show and pantomime both are nouns.

Word	Noun	Adjective	Verb	Adverb
dumb show	Yes	No	No	No
pantomime	Yes	No	Yes	No

As nouns, dumb show and pantomime are synonyms defined as:

dumb show and pantomime: a performance using gestures and body movements without words

Other synonyms of dumb show include mime.

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

dumb show (verb)	pantomime (verb)
	act out without words but with gestures and bodily movements only