#bank_vault__vault  a strongroom or compartment (often made of steel) for safekeeping of valuables
  supertype:  strongroom  (British) and burglarproof and fireproof room in which valuables are kept
  part of:  bank_building__bank  a building in which commercial banking is transacted; "the bank is on the corner of Nassau and Witherspoon"

No statement uses or specializes bank_vault; click here to add one.