Definitions
1.NounAn 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.
2.NounA construction in the shape of a pyramid, usually with a square or rectangular base.
3.NounA solid with triangular lateral faces and a polygonal (often square or rectangular) base.
4.NounAny structure or diagram with many members at the bottom and progressively fewer towards the top."The company was organized as a pyramid, with a CEO in charge of four directors, each heading up a department."
5.NounA medullary pyramid, the medial-most bumps on the ventral side of the medulla oblongata
6.NounThe game of pool in which the balls are placed in the form of a triangle at spot.
7.NounA pyramid scheme.
8.NounAlternative letter-case form of Pyramid. (a solitaire card game)
9.NounThe triangular layout of cards in the game of Pyramid."Build your pyramid with all cards face down, except the cards in the bottom row."
10.NounAn approximately triangular headline consisting of several centered lines of text of increasing length.
11.VerbTo build up or be arranged in the form of a pyramid.
12.VerbTo combine (a series of genes) into a single genotype.
13.VerbTo employ, or take part in, a pyramid scheme.
14.VerbTo engage in pyramid trading.
15.VerbTo increase to or towards a peak.