A monumental structure with a square or rectangular base and sloping sides that meet in a point at the top, especially one built of stone as a royal tomb in ancient Egypt.

The Great Pyramid of Giza is one of the most famous pyramids in the world.

A solid geometric figure with a polygonal base and triangular faces that converge to a single point.

In geometry class, we learned how to calculate the volume of a pyramid.

A hierarchical structure or system with a broad base and a narrow top, often used to describe organizational or social structures.

The corporate pyramid often has many employees at the base and few executives at the top.

A type of scheme or business model that recruits members via a promise of payments or services for enrolling others into the scheme, rather than supplying investments or sale of products.

The company was shut down after it was revealed to be operating a pyramid scheme.

Anatomy: any of several pyramid-shaped masses of tissue, especially the medullary pyramids of the brainstem or the renal pyramids of the kidney.

Damage to the medullary pyramids can impair voluntary motor control.

pyramidverb

To increase rapidly in number or amount by building on a small initial investment.

The company managed to pyramid its profits by reinvesting earnings into new projects.

To arrange or build up in the shape of a pyramid.

The workers pyramided the blocks to form the base of the structure.

To speculate by using profits from one transaction as the margin for another.

He pyramided his investments, using the gains from one stock to buy more shares in another.

pyramidadjective

Having the form or characteristics of a pyramid; relating to or involving a pyramid.

The engineer designed a pyramid roof for the new pavilion.