pile vs sluice box

pile

noun
  • A mass of things heaped together; a heap. 

  • A large building, or mass of buildings. 

  • One of the ordinaries or subordinaries having the form of a wedge, usually placed palewise, with the broadest end uppermost. 

  • The head of an arrow or spear. 

  • A list or league 

  • A mass formed in layers. 

  • A large amount of money. 

  • A bundle of pieces of wrought iron to be worked over into bars or other shapes by rolling or hammering at a welding heat; a fagot. 

  • A beam, pole, or pillar, driven completely into the ground. 

  • A large stake, or piece of pointed timber, steel etc., driven into the earth or sea-bed for the support of a building, a pier, or other superstructure, or to form a cofferdam, etc. 

  • Hair, especially when very fine or short; the fine underfur of certain animals. (Formerly countable, now treated as a collective singular.) 

  • An atomic pile; an early form of nuclear reactor. 

  • A vertical series of alternate disks of two dissimilar metals (especially copper and zinc), laid up with disks of cloth or paper moistened with acid water between them, for producing a current of electricity; a voltaic pile, or galvanic pile. 

  • The raised hairs, loops or strands of a fabric; the nap of a cloth. 

  • A hemorrhoid. 

  • A funeral pile; a pyre. 

  • A group or list of related items up for consideration, especially in some kind of selection process. 

verb
  • To add something to a great number. 

  • (of vehicles) To create a hold-up. 

  • To place (guns, muskets, etc.) together in threes so that they can stand upright, supporting each other. 

  • To drive piles into; to fill with piles; to strengthen with piles. 

  • To give a pile to; to make shaggy. 

  • To lay or throw into a pile or heap; to heap up; to collect into a mass; to accumulate 

  • To cover with heaps; or in great abundance; to fill or overfill; to load. 

sluice box

noun
  • A box with riffles along the bottom, used to trap heavier gold particles as water washes them and the other material along the box. 

How often have the words pile and sluice box occurred in a corpus of books? (source: Google Ngram Viewer )