cardsharp vs card sharper

cardsharp and card sharper both are nouns.

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

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

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

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

cardsharp (noun)	card 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