The term 'Jewelry-Box Catch' is a type of hardware used to secure a box or container. It is also known as a HASP, which is a four-letter word that is the solution to the crossword puzzle. A HASP is a hinged metal loop with a staple or pin that fits into a slot on the box or container, and is secured with a padlock or other locking device. Jewelry-box catches are commonly used to secure jewelry boxes, chests, and other small containers.