Bip39 Ian Coleman. The passphrase is not really chosen in the predefined list of 2048 words – it might be any word or phrase you choose. BIP39 is a style and design implementation that lays out how copyright wallets develop the set of words (or "mnemonic codes") that make up https://single-bookmark.com/story19670745/bip39-mnemonic-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf