Bip39 Words. The passphrase is just not chosen through the predefined list of 2048 words – it can be any word or phrase you select. BIP39 is often a style implementation that lays out how copyright wallets generate the set of words (or "mnemonic codes") that make up a mnemonic https://userbookmark.com/story19500919/bip-39-https-linktr-ee-bip39-5-essential-elements-for-bip-39