For words that have only 3 letters, there isn't any 4th letter. Such as with the word “add”, there isn't any much more letters afterwards and thus needs to be the word "include". The word “addict” is within the BIP39 wordlist however you would have used “addi” for “addict”. You https://naturalbookmarks.com/story18857394/examine-this-report-on-bip39-passphrase