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
not widely distributed; "rare herbs"; "rare patches of green in the desert"
not widely known; especially valued for its uncommonness; "a rare word"; "rare books"
(of meat) cooked a short time; still red inside; "rare roast beef"
recurring only at long intervals; "a rare appearance"; "total eclipses are rare events"
marked by an uncommon quality; especially superlative or extreme of its kind; "what is so rare as a day in June"-J.R.Lowell; "a rare skill"; "an uncommon sense of humor"; "she was kind to an uncommon degree"
having low density; "rare gasses"; "lightheaded from the rarefied mountain air"