noun a polyhedron having a polygonal base and triangular sides with a common vertex.
noun (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.
noun a massive monument with a square base and four triangular sides.
— synonyms: Great_Pyramid, Pyramids_of_Egypt
verb enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts.
verb use or deal in (as of stock or commercial transaction) in a pyramid deal.
verb arrange or build up as if on the base of a pyramid.
verb increase rapidly and progressively step by step on a broad base.
Examples
“Build your pyramid with all cards face down, except the cards in the bottom row.”