(1):

(n.) One who practices magic arts; one who pretends to act by the aid super natural power; also, one who performs feats of legerdemain or sleight of hand.

(2):

(n.) One who conjures; one who calls, entreats, or charges in a solemn manner.

(3):

(n.) One who conjectures shrewdly or judges wisely; a man of sagacity.