For words that have only 3 letters, there's no 4th letter. For instance with the word “add”, there isn't any additional letters afterwards and therefore should be the word "incorporate". The word “addict” is during the BIP39 wordlist however , you might have utilised “addi” for “addict”. Art is actually https://socialmarkz.com/story9283883/considerations-to-know-about-bip39-word-list-pdf