For words that only have three letters, there is not any 4th letter. Such as with the word “add”, there isn't any a lot more letters afterwards and so needs to be the word "insert". The word “addict” is during the BIP39 wordlist however, you might have utilized “addi” for https://mysterybookmarks.com/story18999009/considerations-to-know-about-bip39-seed-phrase-generator