Dictionary of Undefined Words

How many words are used in dictionary definitions, but do not themselves have a definition?

This project is an attempt to search for the answer. The goal was to examine the idea of language as a structural system, and to prove the dictionary an impossibly finite representation of the fluid and evolving set of language.

Defined words: 115,413

Potential unknown words tested: approximately 2.6 million

Distinct undefined words found: 17,086