Bip39-Standalone. Is passphrase similar to PIN? No, a passphrase is not the same as a PIN. A passphrase, inside the context of Bitcoin wallets, is an additional layer of safety for your wallet that actually works together with your seed phrase to encrypt and guard your wallet. A PIN, On https://socialbuzzfeed.com/story4655477/bip39-words-https-linktr-ee-bip39-5-essential-elements-for-bip-39