Bip39 Words. Is passphrase the same as PIN? No, a passphrase isn't the same as a PIN. A passphrase, in the context of Bitcoin wallets, is an additional layer of protection to your wallet that works along with your seed phrase to encrypt and safeguard your wallet. A PIN, On https://bookmarkinglive.com/story20171073/bip-39-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf