the yarn (as in a rug or velvet or corduroy) that stands up from the weave; "for uniform color and texture tailors cut velvet with the pile running the same direction"
(often followed by `of') a large number or amount or extent; "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "it must have cost plenty"
From The Free On-line Dictionary of Computing: (http://www.foldoc.org/, Editor Denis Howe)
1. Polytechnic's Instructional Language for Educators. Similar in use to an enhanced PILOT, but structurally more like Pascal with Awk-like associative arrays (optionally stored on disk). Distributed to about 50 sites by Initial Teaching Alphabet Foundation for Apple II and CP/M.
["A Universal Computer Aided Instruction System," Henry G. Dietz & Ronald J Juels, Proc Natl Educ Computing Conf '83, pp.279-282].
2. ["PILE _ A Language for Sound Synthesis", P. Berg, Computer Music Journal 3.1, 1979].