card sharp vs sharper

card sharp and sharper both are nouns.

Word	Noun	Adjective	Verb	Adverb
card sharp	Yes	No	No	No
sharper	Yes	No	No	No

As nouns, card sharp and sharper are synonyms defined as:

card sharp and sharper: a professional card player who makes a living by cheating at card games

Other synonyms of card sharp include card shark, card sharper, cardsharp, cardsharper, sharpie, sharpy.

card sharp (noun)	sharper (noun)
a professional card player who makes a living by cheating at card games	a professional card player who makes a living by cheating at card games