For words that only have three letters, there's no 4th letter. For example with the word “insert”, there won't be any a lot more letters Later on and so have to be the word "incorporate". The word “addict” is in the BIP39 wordlist however, you would have employed “addi” for https://friendlybookmark.com/story18806935/5-simple-techniques-for-bip39-seed-phrase