Is “Sharper” a Scrabble word?

1. 1.Terminating in a point or edge, especially one that can cut easily; not obtuse or rounded.

   “A face with sharp features”

2. 2.Intelligent.

   “My nephew is a sharp lad; he can count to 100 in six languages, and he's only five years old.”

3. 3.Higher than usual by one semitone (denoted by the symbol ♯ after the name of the note).

Synonyms: keen, razor, razor-sharp, pointed, accurate, exact

1. 1.A swindler; a cheat; a professional gambler who makes his living by cheating.

Synonyms: chiseler, spiv