UNBOLT
- to open (a door, window, etc.) by or as if by removing a bolt; unlock; unfasten
- to release, as by the removal of threaded bolts
- to become unbolted or unfastened
- to undo a bolt [v -ED, -ING, -S]
- to open by withdrawing a bolt (a metal bar) [v UNBOLTED, UNBOLTING, UNBOLTS]