For words that have only 3 letters, there's no 4th letter. As an example with the word “include”, there are no far more letters Later on and thus must be the word "increase". The word “addict” is while in the BIP39 wordlist however , you might have utilized “addi” for https://bookmarkblast.com/story19192055/the-definitive-guide-to-bip39-seed-phrase