For words that have only 3 letters, there is not any 4th letter. For instance with the word “add”, there won't be any a lot more letters afterwards and so must be the word "incorporate". The word “addict” is within the BIP39 wordlist however, you might have utilized “addi” for https://tinybookmarks.com/story19456344/a-review-of-bip39-passphrase