For words that have only three letters, there is no 4th letter. Such as with the word “include”, there isn't any more letters afterwards and thus have to be the word "include". The word “addict” is in the BIP39 wordlist but you might have used “addi” for “addict”. Multiple Wallets:If https://socialnetworkadsinfo.com/story20015897/a-review-of-bip39-passphrase