The term 'PACK IN A BOX' can be solved by two crossword solutions: 'ENCASE' (6 letters) and 'CRATE' (5 letters). Encasing is the act of enclosing something in a protective covering, such as a box or container. Crating is the process of packing items into a wooden box or CRATE for transport or storage. Both encasing and crating involve packing items into a box or container, making them both suitable solutions to the term 'PACK IN A BOX'.