Bip39 Ian Coleman. Because the 24th is often a checksum word, a list of 8 valid candidate words are calculated using the Python script 24thword.py. For words that have only 3 letters, there is not any 4th letter. As an example with the word “include”, there isn't any a lot https://phrasedirectory.com/listings13077689/bip39-standard-https-linktr-ee-bip39-bip39-github-no-further-a-mystery