Is it card shark or card sharp?

The terms card shark and card sharp are both used to refer to someone who frequently wins card games like poker (either through skill or deception). The original term was card sharp, but card shark has gained popularity recently and is now considered by many to be an acceptable variant.

Both terms have a somewhat negative connotation, often implying that a person succeeds by preying on less-skilled players. However, some people use the terms positively to refer to a person who is very skilled at gambling card games.

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