Among the approximately 200,000 words in the English language (give or take a few), “Dord” is unique.
Oh, it’s in the dictionary, or at least it used to be, right there between Dorcopsis (a genus of small kangaroo) and doré (meaning gold). But it doesn’t mean anything. In fact, it was there by accident. Dord isn’t really a word.
Turns out that for five years, from 1934 through 1939 , Webster’s New International Dictionary mistakenly included dord as a real word, defining it as a noun meaning density.