Bip39 Passphrase. A BIP39 mnemonic sentence is really a set of words (most often 12 or 24) that we are able to communicate with far more properly than other characters that aren't words (bits and numbers and the like). BIP39's objective in introducing the usage of mnemonic words is usually https://directoryorg.com/listings13121072/bip39-word-list-https-linktr-ee-bip39-bip39-github-no-further-a-mystery