confidence man vs con man

confidence man and con man both are nouns.

Word	Noun	Adjective	Verb	Adverb
confidence man	Yes	No	No	No
con man	Yes	No	No	No

As nouns, confidence man and con man are synonyms defined as:

confidence man and con man: a swindler who exploits the confidence of his victim

Other synonyms of confidence man include con artist.

confidence man (noun)	con man (noun)
a swindler who exploits the confidence of his victim	a swindler who exploits the confidence of his victim