Bip39 Word List Numbers. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, within the context of Bitcoin wallets, is an additional layer of protection towards your wallet that works together with your seed phrase to encrypt and guard your wallet. https://bookmarkchamp.com/story18596928/bip39-mnemonic-https-linktr-ee-bip39-the-bip39-wallet-diaries