Bip39 Checksum. Since the 24th is really a checksum word, a list of eight legitimate candidate words are calculated using the Python script 24thword.py. For words that only have three letters, there's no 4th letter. By way of example Along with the word “include”, there won't be any additional letters https://oncedirectory.com/listings13043146/bip39-mnemonic-code-converter-tool-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-standard