- 1a large building with a square or triangular base and sloping sides that meet in a point at the top. The ancient Egyptians built stone pyramids as places to bury their kings and queens.
- 2(geometry) a solid shape with a square or triangular base and sloping sides that meet in a point at the top
- 3an image, an object, or a pile of things that has the shape of a pyramid a pyramid of cans in a shop window The food pyramid shows you the food you should eat for a healthy diet.
- 4an organization or a system in which there are fewer people at each level as you get near the top a management pyramid
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