pyramid

definition: 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, often in the stock market
example: The stock broker got in trouble for setting up a pyramid scheme.
speech part: noun
synonyms:
definition: a polyhedron having a polygonal base and triangular sides with a common vertex
example:
speech part: noun
synonyms:
definition: increase rapidly and progressively step by step on a broad base
example:
speech part: verb
synonyms:
definition: arrange or build up as if on the base of a pyramid
example:
speech part: verb
synonyms:
definition: use or deal in (as of stock or commercial transaction) in a pyramid deal
example:
speech part: verb
synonyms:
definition: enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
example:
speech part: verb
synonyms:

pyramid is explained and pronounced

How pyramid is being used?