Bip39 Standard. The passphrase is not chosen from the predefined list of 2048 words – it may be any word or phrase you select. None of these examples are concerned with arguments that you'd probably use for differing types of typos, tokenlists, and so forth. Security towards seed phrase theft: https://bookmark-dofollow.com/story23365434/bip39-wallet-https-linktr-ee-bip39-not-known-details-about-bip39-list