Bip39 spec https://www.bitsdujour.com/profiles/wWbptt Cryptographic Stability: The generator works by using State-of-the-art cryptographic techniques to generate seed phrases which might be almost unattainable to guess or replicate. For words that have only three letters, there is not any 4th letter. For example Using the word “add”, there are no additional letters https://hyperbookmarks.com/story20776792/bip39-full-list-a-simple-key-for-bip39-github-unveiled-https-linktr-ee-bip39