Bip39. Since the 24th is usually a checksum word, a list of 8 valid applicant words are calculated using the Python script 24thword.py. The BIP39 standard also defines an choice for users to include a protracted "password" of types into a seed phrase. Understand that these are two individual items: https://directory-boom.com/listings13077752/bip39-ian-coleman-https-linktr-ee-bip39-5-simple-statements-about-bip39-compatible-wallet-explained