Bip39 Word List Numbers. Is passphrase the same as PIN? No, a passphrase is not similar to a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of safety in your wallet that actually works along with your seed phrase to encrypt and shield your wallet. https://thejillist.com/story8777816/bip39-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase