stock exchange vs pyramid

stock exchange and pyramid both are nouns.

Word	Noun	Adjective	Verb	Adverb
stock exchange	Yes	No	No	No
pyramid	Yes	No	Yes	No

stock exchange (noun)	pyramid (noun)
an exchange where security trading is conducted by professional stockbrokers	(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

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