scammer vs defrauder

scammer and defrauder both are nouns.

Word	Noun	Adjective	Verb	Adverb
scammer	Yes	No	No	No
defrauder	Yes	No	No	No

As nouns, scammer and defrauder are synonyms defined as:

scammer and defrauder: a person who swindles you by means of deception or fraud

Other synonyms of scammer include chiseler, chiseller, gouger, grifter, swindler.

scammer (noun)	defrauder (noun)
a person who swindles you by means of deception or fraud	a person who swindles you by means of deception or fraud