pyramid

Noun
  1. A polyhedron having a polygonal base and triangular sides with a common vertex (synset 113937870)
  2. (stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases (synset 113364299)
  3. A massive monument with a square base and four triangular sides;
    Begun by Cheops around 2700 BC as royal tombs in ancient Egypt (synset 104035601)
Verb
  1. Enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts (synset 202295717)
  2. Use or deal in (as of stock or commercial transaction) in a pyramid deal (synset 202251082)
  3. Arrange or build up as if on the base of a pyramid (synset 201468676)
  4. Increase rapidly and progressively step by step on a broad base (synset 200157902)

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