For words that only have 3 letters, there is not any 4th letter. For example with the word “add”, there won't be any a lot more letters afterwards and thus should be the word "incorporate". The word “addict” is inside the BIP39 wordlist but you would have utilised “addi” for https://wavesocialmedia.com/story5091613/the-basic-principles-of-bip39-passphrase-generator