The term 'lock holder' can refer to two different objects. The first is a MOUSSE, which is a 6-letter word. A MOUSSE is a type of lock that is used to secure doors and windows. It is usually made of metal and has a spring-loaded latch that is operated by a key. The second object is a HASP, which is a 4-letter word. A HASP is a type of lock holder that is used to secure cabinets, drawers, and other items. It is typically made of metal and has a hinged arm that is secured with a padlock.