con man vs confidence man

con man and confidence man both are nouns.

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

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

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

Other synonyms of con man include con artist.

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