Bip39 Dictionary. Is passphrase similar to PIN? No, a passphrase is not similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of protection in your wallet that actually works alongside your seed phrase to encrypt and guard your wallet. A PIN, On the https://social-lyft.com/story8513691/bip39-list-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy