sharper vs chiseller

sharper and chiseller both are nouns.

Word	Noun	Adjective	Verb	Adverb
sharper	Yes	No	No	No
chiseller	Yes	No	No	No

As nouns, chiseller is a hypernym of sharper; that is, chiseller is a word with a broader meaning than sharper:

sharper: a professional card player who makes a living by cheating at card games
chiseller: a person who swindles you by means of deception or fraud

Other hypernyms of sharper include card player, chiseler, defrauder, gouger, grifter, scammer, swindler.

sharper (noun)	chiseller (noun)
a professional card player who makes a living by cheating at card games	a person who swindles you by means of deception or fraud