An underground system of tunnels and chambers with recesses for graves, used (in former times) as a cemetery; a tunnel system used for burying the dead, as in Paris or Ancient Rome.
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.
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 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.
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.