Bip39 Word List Numbers. Is passphrase the same as PIN? No, a passphrase is not really similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of security towards your wallet that works along with your seed phrase to encrypt and defend your wallet. https://bookmarkgenius.com/story18554261/bip39-word-list-pdf-https-linktr-ee-bip39-about-ian-coleman-bip39