For words that only have 3 letters, there isn't any 4th letter. As an example with the word “include”, there isn't any far more letters afterwards and so needs to be the word "insert". The word “addict” is while in the BIP39 wordlist but you might have used “addi” for https://myfirstbookmark.com/story18895021/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator