For words that only have three letters, there is no 4th letter. For example with the word “insert”, there won't be any more letters afterwards and therefore must be the word "incorporate". The word “addict” is inside the BIP39 wordlist however , you would have used “addi” for “addict”. Acquiring https://ticketsbookmarks.com/story18940444/examine-this-report-on-bip39-passphrase