Bip39 Passphrase. use the joined words like a mnemonic sentence. The next table describes the relation involving the initial entropy A copyright wallet passphrase is an optional element that can be used Besides your seed phrase to restrict use of your copyright wallet. The BIP-39 standard defines each the passphrase https://directoryrelt.com/listings600156/bip39-wallet-https-linktr-ee-bip39-top-bip39-seed-phrase-secrets