Article: A true pyramid.(word pyramids)

The term "pyramid" is used in two ways in logology: 1) a "word pyramid" is a word ladder in which each step adds a letter--eg, I IN FIN FIND FIEND FRIEND; 2) a "pyramid word" has an abstract 'pyramid' of letter frequencies--eg, REMEMBERER with 1B, 2Ms, 3Rs, 4Es. Both of these misuse the word pyramid to mean triangle. A pyramid is three dimensional--a polygonal base with triangular sides that meet at a point. The base can have three or any higher number of sides but it's usually thought of as a square because of the Egyptian pyramids.

In a true word pyramid all edge letters are common to two triangles, with the top letter common to all. I leave to others the ...

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