For words that only have three letters, there's no 4th letter. For example with the word “include”, there isn't any additional letters afterwards and thus needs to be the word "increase". The word “addict” is during the BIP39 wordlist however , you would have applied “addi” for “addict”. Various Wallets:When https://thesocialdelight.com/story4291885/top-latest-five-bip39-seed-phrase-mnemonics-generator-urban-news