pyramid

A solid figure with a polygonal base and triangular faces that meet at a common point.

Something shaped like this polyhedron.

A massive monument of ancient Egypt having a rectangular base and four triangular faces culminating in a single apex, built over or around a crypt or tomb.

Any of various similar constructions, especially a four-sided Mesoamerican temple having stepped sides and a flat top surmounted by chambers.

The transactions involved in pyramiding stock.

A structure or part suggestive of a pyramid in shape.

To place or build in the shape of a pyramid.

To build (an argument or thesis, for example) progressively from a basic general premise.