For words that only have 3 letters, there is not any 4th letter. By way of example with the word “incorporate”, there aren't any a lot more letters Later on and therefore have to be the word "add". The word “addict” is during the BIP39 wordlist however , you might https://bookmarkinglog.com/story19023899/detailed-notes-on-copyright-wallet-seed-phrase-out-of-bip39