For words that have only 3 letters, there is not any 4th letter. For instance with the word “add”, there isn't any a lot more letters afterwards and thus need to be the word "increase". The word “addict” is during the BIP39 wordlist but you would have employed “addi” for https://tripsbookmarks.com/story19190476/the-basic-principles-of-bip39-passphrase-generator