Available Definitions:
1) a. - Acute; shrewd; sagacious; sharp-sighted.
2) v. t. - To see by the eye or by the understanding; to perceive and recognize; as, to discern a difference.
3) v. i. - To see or understand the difference; to make distinction; as, to discern between good and evil, truth and falsehood.
4) v. i. - To make cognizance.