Bip39 Mnemonic Code Converter Tool. The passphrase will not be chosen with the predefined list of 2048 words – it might be any word or phrase you end up picking. BIP39 can be a structure implementation that lays out how copyright wallets create the list of words (or "mnemonic codes") https://thebookmarkage.com/story18730969/bip39-list-https-linktr-ee-bip39-not-known-facts-about-bip39