Bip39 Mnemonic Generator. Press X to abort passphrase application and hold enhancing the passphrase. Picking CANCEL immediately after an abort will quit the process. BIP39 is really a layout implementation that lays out how copyright wallets build the set of words (or "mnemonic codes") which make up a mnemonic sentence, https://highkeysocial.com/story4134226/bip39-list-https-linktr-ee-bip39-not-known-details-about-bip39-wallets