Bip39 Word List. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of safety towards your wallet that actually works along with your seed phrase to encrypt and protect your wallet. https://baidubookmark.com/story18920854/bip-39-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained