Bip39 Seed Phrase. The passphrase is not really picked from the predefined list of 2048 words – it might be any word or phrase you end up picking. None of such illustrations are concerned with arguments that you'd probably use for different types of typos, tokenlists, and so forth. From https://bookmarkspedia.com/story4611926/bip39-wallet-https-linktr-ee-bip39-the-fact-about-bip-39-that-no-one-is-suggesting