con man vs con artist

con man and con artist both are nouns.

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

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

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

Other synonyms of con man include confidence man.

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