Bip39 Word List. Is passphrase the same as PIN? No, a passphrase just isn't similar to a PIN. A passphrase, while in the context of Bitcoin wallets, is an extra layer of stability on your wallet that actually works together with your seed phrase to encrypt and secure your wallet. https://getidealist.com/story20398482/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-generator