Bip39 Dictionary. Is passphrase similar to PIN? No, a passphrase is just not similar to a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of protection to the wallet that actually works alongside your seed phrase to encrypt and defend your wallet. A PIN, Alternatively, https://fatallisto.com/story8596875/bip39-words-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained