The term 'SHIP DECK' can be broken down into two crossword solutions: POOP (4 letters) and ORLOP (5 letters). The term 'POOP' is a nautical term referring to the highest deck of a ship, which is usually located at the stern. The term 'ORLOP' is also a nautical term referring to the lowest deck of a ship, which is usually located at the bow. Both terms are used to describe the different levels of a ship's deck.