pyramid
n//p(ɪ)rəˈmɪɖ//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.
A construction in the shape of a pyramid, usually with a square or rectangular base.
(geometry) A solid with triangular lateral faces and a polygonal (often square or rectangular) base.