mountebank vs charlatan

mountebank and charlatan both are nouns.

Word	Noun	Adjective	Verb	Adverb
mountebank	Yes	No	No	No
charlatan	Yes	No	No	No

As nouns, mountebank and charlatan are synonyms defined as:

mountebank and charlatan: a flamboyant deceiver; one who attracts customers with tricks or jokes

mountebank (noun)	charlatan (noun)
a flamboyant deceiver; one who attracts customers with tricks or jokes	a flamboyant deceiver; one who attracts customers with tricks or jokes