Nouns

(n)pyramida polyhedron having a polygonal base and triangular sides with a common vertex
(n)pyramid(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

Verbs

(v)pyramidenlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
(v)pyramiduse or deal in (as of stock or commercial transaction) in a pyramid deal
(v)pyramidarrange or build up as if on the base of a pyramid
(v)pyramidincrease rapidly and progressively step by step on a broad base