pantomimer vs mummer

pantomimer and mummer both are nouns.

Word	Noun	Adjective	Verb	Adverb
pantomimer	Yes	No	No	No
mummer	Yes	No	No	No

As nouns, pantomimer and mummer are synonyms defined as:

pantomimer and mummer: an actor who communicates entirely by gesture and facial expression

Other synonyms of pantomimer include mime, mimer, pantomimist.

pantomimer (noun)	mummer (noun)
an actor who communicates entirely by gesture and facial expression	an actor who communicates entirely by gesture and facial expression