For words that have only 3 letters, there is no 4th letter. By way of example with the word “add”, there aren't any much more letters Later on and so need to be the word "include". The word “addict” is during the BIP39 wordlist however, you would've employed “addi” for http://josuejnub341.image-perth.org/from-words-to-riches-exactly-how-to-effectively-use-bip39-passphrases-for-your-copyright-wallets