Lots of word game dictionaries don’t contain proper nouns. Ponzi is an interesting example because it’s now used as the definitive for what it is, so words lik

Lots of word game dictionaries don’t contain proper nouns. Ponzi is an interesting example because it’s now used as the definitive for what it is, so words like that are hit or miss. Other examples that might or might not be in dictionaries are Kleenex, Xerox, etc.