Bip39 Ian Coleman. The passphrase is not picked from the predefined list of 2048 words – it might be any word or phrase you end up picking. BIP44 defines a selected important derivation route framework that allows for taking care of many accounts and coin styles in a single wallet, https://prbookmarkingwebsites.com/story21755038/bip39-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained