An ancient strongbox is an item used to store valuable items such as money, documents, jewelry, and other valuables. It is typically made of metal or wood and is secured with a lock. The term 'ancient strongbox' can refer to several different types of containers, including an arca (4 letters), a SAFE (4 letters), a CHEST (5 letters), a COFFER (6 letters), a DEED (4 letters), and JEWELS (6 letters). These items were used in the past to protect important items from theft or damage.