a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
(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
a polyhedron having a polygonal base and triangular sides with a common vertex
increase rapidly and progressively step by step on a broad base
arrange or build up as if on the base of a pyramid
use or deal in (as of stock or commercial transaction) in a pyramid deal
enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
an unexpected and inexplicable change in something (in a situation or a person's behavior, etc.); "the vagaries of the weather"; "his wealth fluctuates with the vagaries of the stock market"; "he has dealt with human vagaries for many years"