To employ, or take part in, a pyramid scheme.
To combine (a series of genes) into a single genotype.
To engage in pyramid trading.
To build up or be arranged in the form of a pyramid.
A medullary pyramid, the medial-most bumps on the ventral side of the medulla oblongata
A pyramid scheme.
The triangular layout of cards in the game of Pyramid.
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.
An approximately triangular headline consisting of several centered lines of text of increasing length.
A solid with triangular lateral faces and a polygonal (often square or rectangular) base.
A construction in the shape of a pyramid, usually with a square or rectangular base.