Enter a bip39 passphrase https://www.anobii.com/en/01000289012ff9b293/profile/activity The last stage of BIP-39 is producing the actual binary seed that's then utilized for a master crucial in BIP-32 deterministic wallet or applying other methods. For words that only have 3 letters, there isn't any 4th letter. One example is Together with the word https://tetrabookmarks.com/story20816829/official-bip39-word-list-the-smart-trick-of-bip39-word-list-github-that-no-one-is-discussing-https-linktr-ee-bip39