The term 'A SHIP DECK' can be broken down into two words, 'SHIP' and 'DECK'. The word 'SHIP' refers to a large vessel used for transportation or commerce, while the word 'DECK' is an open platform on a SHIP, typically located above the main DECK. The crossword solution for this term is 'ORLOP', which is a lower DECK of a SHIP, usually located below the main DECK. It is typically used for storage and is sometimes referred to as the 'tween DECK'.