Bip39 Standard. Is passphrase similar to PIN? No, a passphrase is not really the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an extra layer of security in your wallet that actually works together with your seed phrase to encrypt and safeguard your wallet. A https://letsbookmarkit.com/story18706511/bip39-word-list-https-linktr-ee-bip39-a-review-of-bip39-words