<p><strong>Verb (used with object):</strong></p><ul><li>to undo the lock of (a door, chest, etc.), especially with a key</li><li>to open or release by or as if by undoing a lock</li><li>to open (anything firmly closed or joined)</li><li>to unlock the jaws</li><li>to lay open; disclose: to unlock the secrets of one's heart</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to become unlocked</li></ul>