(1):
(v. t.) To open the folds of; to expand; to spread out; as, to unfold a tablecloth.
(2):
(v. i.) To open; to expand; to become disclosed or developed.
(3):
(v. t.) To open, as anything covered or close; to lay open to view or contemplation; to bring out in all the details, or by successive development; to display; to disclose; to reveal; to elucidate; to explain; as, to unfold one's designs; to unfold the principles of a science.
(4):
(v. t.) To release from a fold or pen; as, to unfold sheep.