(n.) The familiar knowledge of any art or science, united with readiness and dexterity in execution or performance, or in the application of the art or science to practical purposes; power to discern and execute; ability to perceive and perform; expertness; aptitude; as, the skill of a mathematician, physician, surgeon, mechanic, etc.
(n.) Display of art; exercise of ability; contrivance; address.
(n.) Any particular art.
(v. t.) To know; to understand.
(v. i.) To be knowing; to have understanding; to be dexterous in performance.
(v. i.) To make a difference; to signify; to matter; -- used impersonally.