Bip39 Mnemonic. The passphrase is just not selected with the predefined list of 2048 words – it may be any word or phrase you end up picking. BIP39 is usually a style and design implementation that lays out how copyright wallets build the set of words (or "mnemonic codes") that https://agency-social.com/story4166957/bip-39-https-linktr-ee-bip39-top-guidelines-of-bip39-mnemonic