For words that only have 3 letters, there is not any 4th letter. For instance with the word “add”, there isn't any much more letters Later on and therefore needs to be the word "include". The word “addict” is while in the BIP39 wordlist however you would've utilised “addi” for https://cyberbookmarking.com/story19400217/facts-about-bip39-seed-phrase-word-list-revealed