What is the meaning of pile?

noun

• A collection of objects laid on top of each other.
  • synonyms: heap, mound, agglomerate, cumulation, cumulus
• Often followed by `of'. ( a large number or amount or extent)
  • usage: "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"
  • synonyms: batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad
• A large sum of money (especially as pay or profit. )
  • usage: "she made a bundle selling real estate"; "they sank megabucks into their new house"
  • synonyms: bundle, big bucks, megabucks, big money
• Fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs.
  • synonyms: down
• Battery consisting of voltaic cells arranged in series; the earliest electric battery devised by Volta.
  • synonyms: voltaic pile, galvanic pile
• A column of wood or steel or concrete that is driven into the ground to provide support for a structure.
  • synonyms: spile, piling, stilt
• The yarn (as in a rug or velvet or corduroy) that stands up from the weave.
  • usage: "for uniform color and texture tailors cut velvet with the pile running the same direction"
  • synonyms: nap
• A nuclear reactor that uses controlled nuclear fission to generate energy.
  • synonyms: atomic pile, atomic reactor, chain reactor

verb

• Arrange in stacks.
  • usage: "heap firewood around the fireplace"; "stack your books up on the shelves"
  • synonyms: stack, heap
• Press tightly together or cram.
  • usage: "The crowd packed the auditorium"
  • synonyms: throng, mob, pack, jam
• Place or lay as if in a pile.
  • usage: "The teacher piled work on the students until the parents protested"