Bip39. The passphrase isn't picked within the predefined list of 2048 words – it might be any word or phrase you decide on. BIP39 is usually a style and design implementation that lays out how copyright wallets generate the set of words (or "mnemonic codes") which make up a mnemonic https://bookmarkerz.com/story18827388/bip39-list-https-linktr-ee-bip39-top-guidelines-of-bip39-mnemonic