The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, n. [L. pilum javelin. See Pile a stake.]
   The head of an arrow or spear. [Obs.] --Chapman.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, n. [AS. p[imac]l arrow, stake, L. pilum javelin;
   but cf. also L. pila pillar.]
   1. A large stake, or piece of timber, pointed and driven into
      the earth, as at the bottom of a river, or in a harbor
      where the ground is soft, for the support of a building, a
      pier, or other superstructure, or to form a cofferdam,
      etc.
      [1913 Webster]

   Note: Tubular iron piles are now much used.
         [1913 Webster]

   2. [Cf. F. pile.] (Her.) One of the ordinaries or
      subordinaries having the form of a wedge, usually placed
      palewise, with the broadest end uppermost.
      [1913 Webster]

   Pile bridge, a bridge of which the roadway is supported on
      piles.

   Pile cap, a beam resting upon and connecting the heads of
      piles.

   Pile driver, or Pile engine, an apparatus for driving
      down piles, consisting usually of a high frame, with
      suitable appliances for raising to a height (by animal or
      steam power, the explosion of gunpowder, etc.) a heavy
      mass of iron, which falls upon the pile.

   Pile dwelling. See Lake dwelling, under Lake.

   Pile plank (Hydraul. Eng.), a thick plank used as a pile in
      sheet piling. See Sheet piling, under Piling.

   Pneumatic pile. See under Pneumatic.

   Screw pile, one with a screw at the lower end, and sunk by
      rotation aided by pressure.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, n. [L. pilus hair. Cf. Peruke.]
   1. A hair; hence, the fiber of wool, cotton, and the like;
      also, the nap when thick or heavy, as of carpeting and
      velvet.
      [1913 Webster]

            Velvet soft, or plush with shaggy pile. --Cowper.
      [1913 Webster]

   2. (Zool.) A covering of hair or fur.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, v. t.
   To drive piles into; to fill with piles; to strengthen with
   piles.
   [1913 Webster]

   To sheet-pile, to make sheet piling in or around. See
      Sheet piling, under 2nd Piling.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, v. t. [imp. & p. p. Piled; p. pr. & vb. n.
   Piling.]
   1. To lay or throw into a pile or heap; to heap up; to
      collect into a mass; to accumulate; to amass; -- often
      with up; as, to pile up wood. "Hills piled on hills."
      --Dryden. "Life piled on life." --Tennyson.
      [1913 Webster]

            The labor of an age in piled stones.  --Milton.
      [1913 Webster]

   2. To cover with heaps; or in great abundance; to fill or
      overfill; to load.
      [1913 Webster]

   To pile arms To pile muskets (Mil.), to place three guns
      together so that they may stand upright, supporting each
      other; to stack arms.
      [1913 Webster] Pileate

The Collaborative International Dictionary of English v.0.48:

Pile \Pile\, n. [F. pile, L. pila a pillar, a pier or mole of
   stone. Cf. Pillar.]
   1. A mass of things heaped together; a heap; as, a pile of
      stones; a pile of wood.
      [1913 Webster]

   2. A mass formed in layers; as, a pile of shot.
      [1913 Webster]

   3. A funeral pile; a pyre. --Dryden.
      [1913 Webster]

   4. A large building, or mass of buildings.
      [1913 Webster]

            The pile o'erlooked the town and drew the fight.
                                                  --Dryden.
      [1913 Webster]

   5. (Iron Manuf.) Same as Fagot, n., 2.
      [1913 Webster]

   6. (Elec.) A vertical series of alternate disks of two
      dissimilar metals, as copper and zinc, laid up with disks
      of cloth or paper moistened with acid water between them,
      for producing a current of electricity; -- commonly called
      Volta's pile, voltaic pile, or galvanic pile.
      [1913 Webster]

   Note: The term is sometimes applied to other forms of
         apparatus designed to produce a current of electricity,
         or as synonymous with battery; as, for instance, to an
         apparatus for generating a current of electricity by
         the action of heat, usually called a thermopile.
         [1913 Webster]

   7. [F. pile pile, an engraved die, L. pila a pillar.] The
      reverse of a coin. See Reverse.
      [1913 Webster]

   Cross and pile. See under Cross.

   Dry pile. See under Dry.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Piles \Piles\, n. pl. [L. pila a ball. Cf. Pill a medicine.]
   (Med.)
   The small, troublesome tumors or swellings about the anus and
   lower part of the rectum which are technically called
   hemorrhoids. See Hemorrhoids.

   Note: [The singular pile is sometimes used.]
         [1913 Webster]

   Blind piles, hemorrhoids which do not bleed.
      [1913 Webster]

WordNet (r) 3.0 (2006):

pile
    n 1: a collection of objects laid on top of each other [syn:
         pile, heap, mound, agglomerate, cumulation,
         cumulus]
    2: (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"; "see the rest of the
       winners in our huge passel of photos"; "it must have cost
       plenty"; "a slew of journalists"; "a wad of money" [syn:
       batch, deal, flock, good deal, great deal,
       hatful, heap, lot, mass, mess, mickle, mint,
       mountain, muckle, passel, peck, pile, plenty,
       pot, quite a little, raft, sight, slew, spate,
       stack, tidy sum, wad]
    3: a large sum of money (especially as pay or profit); "she made
       a bundle selling real estate"; "they sank megabucks into
       their new house" [syn: pile, bundle, big bucks,
       megabucks, big money]
    4: fine soft dense hair (as the fine short hair of cattle or
       deer or the wool of sheep or the undercoat of certain dogs)
       [syn: down, pile]
    5: battery consisting of voltaic cells arranged in series; the
       earliest electric battery devised by Volta [syn: voltaic
       pile, pile, galvanic pile]
    6: a column of wood or steel or concrete that is driven into the
       ground to provide support for a structure [syn: pile,
       spile, piling, stilt]
    7: 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" [syn:
       pile, nap]
    8: a nuclear reactor that uses controlled nuclear fission to
       generate energy [syn: atomic pile, atomic reactor,
       pile, chain reactor]
    v 1: arrange in stacks; "heap firewood around the fireplace";
         "stack your books up on the shelves" [syn: stack, pile,
         heap]
    2: press tightly together or cram; "The crowd packed the
       auditorium" [syn: throng, mob, pack, pile, jam]
    3: place or lay as if in a pile; "The teacher piled work on the
       students until the parents protested"

The Free On-line Dictionary of Computing (19 January 2023):

PILE

   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].

   (1999-06-04)