— unlockable , adj.
/un lok"/ , v.t.
1. to undo the lock of (a door, chest, etc.), esp. with a key.
2. to open or release by or as if by undoing a lock.
3. to open (anything firmly closed or joined): to unlock the jaws.
4. to lay open; disclose: to unlock the secrets of one's heart.
v.i.
5. to become unlocked.
[ 1350-1400; ME unloken; see UN- 2 , LOCK 1 ]