Bip39 Word List. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of security to the wallet that works along with your seed phrase to encrypt and protect your wallet. A PIN, https://infopagex.com/story4696306/bip39-generator-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described