An ancient massive construction with a square or rectangular base and four triangular sides meeting in an apex, such as those built as tombs in Egypt or as bases for temples in Mesoamerica.

To build up or be arranged in the form of a pyramid. / (transitive, genetics) To combine (a series of genes) into a single genotype. / (intransitive) To employ, or take part in, a pyramid scheme.

(geometry) Pyramid-shaped. / (crystallography) Tetragonal.

(anatomy) One of the carpal bones.

Like a pyramid; in a pyramidal manner or shape.

pyramidic

Of or pertaining to a pyramid; having the form or imposing presence of a pyramid; pyramidal.

A set of ancient pyramidal-shaped constructions in Egypt, mostly built as tombs for the pharaohs.

plural of pyramid

The game of pyramid pool.