an obstruction that stands in the way (and must be removed or surmounted or circumvented)
something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan"
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
increased pressure in the eyeball due to obstruction of the outflow of aqueous humor; damages the optic disc and impairs vision (sometimes progressing to blindness)