Bip39 Seed Phrase. Is passphrase similar to PIN? No, a passphrase will not be the same as a PIN. A passphrase, from the context of Bitcoin wallets, is an additional layer of stability on your wallet that actually works together with your seed phrase to encrypt and defend your wallet. https://nybookmark.com/story21348137/bip39-word-list-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase