What Is Z Seeded A BIP39 mnemonic sentence is a list of words (most commonly twelve or 24) that we are able to connect with far more effectively than other people that aren't words (bits and quantities along with the like). BIP39's purpose in introducing the usage of mnemonic words https://businessbookmark.com/story3939839/iancoleman-bip39-github-the-best-side-of-bip39