(1):

(v. i.) To remove the covers from dishes, or the like.

(2):

(v. t.) To divest of the hat or cap; to bare the head of; as, to uncover one's head; to uncover one's self.

(3):

(v. t.) To take the cover from; to divest of covering; as, to uncover a box, bed, house, or the like; to uncover one's body.

(4):

(v. t.) To show openly; to disclose; to reveal.

(5):

(v. i.) To take off the hat or cap; to bare the head in token of respect.