For words that have only three letters, there's no 4th letter. One example is with the word “insert”, there won't be any a lot more letters Later on and therefore has to be the word "incorporate". The word “addict” is inside the BIP39 wordlist however you would've utilized “addi” for https://wiishlist.com/story19411402/not-known-facts-about-bip39-english-words