For words that only have 3 letters, there's no 4th letter. One example is with the word “add”, there are no extra letters afterwards and thus has to be the word "insert". The word “addict” is from the BIP39 wordlist however, you might have utilized “addi” for “addict”. gravity trophy https://wavesocialmedia.com/story4751425/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting