stacks
     n 1: a large number or amount; "made lots of new friends"; "she
          amassed a mountain of newspapers" [syn: tons, dozens,
           heaps, lots, mountain, piles, scores, loads,
           rafts, slews, wads, oodles, gobs, scads, lashings]
     2: storage space consisting of an extensive arrangement of
        bookshelves in a library where most of the books are
        stored [syn: set of bookshelves]