Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of protection for your wallet that actually works alongside your seed phrase to encrypt and defend your wallet. A PIN, Then again, https://infopagex.com/story4161388/bip39-word-list-pdf-https-linktr-ee-bip39-what-does-ian-coleman-bip39-mean