The term 'Piled Up' can be described by four different crossword solutions: AMASSED (7 letters), STACKED (7 letters), Heaped (6 letters), and Inaheap (7 letters). AMASSED means to gather or accumulate a large number of things, while STACKED implies that the items are arranged IN a neat pile. Heaped is similar to STACKED, but implies that the items are arranged IN a disorderly manner. Finally, Inaheap is a combination of the words 'IN' and 'HEAP', which suggests that the items are arranged IN a large, disorganized pile.