Bip39 Passphrase. Is passphrase similar to PIN? No, a passphrase is not really similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection to the wallet that actually works together with your seed phrase to encrypt and defend your wallet. A PIN, https://thesocialdelight.com/story5103110/bip39-word-list-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-word-list