For words that have only three letters, there isn't any 4th letter. For example with the word “include”, there aren't any far more letters Later on and thus should be the word "include". The word “addict” is while in the BIP39 wordlist however you would've made use of “addi” for https://natural-bookmark.com/story18992173/new-step-by-step-map-for-bip39-english-words