For words that only have 3 letters, there isn't any 4th letter. Such as with the word “increase”, there isn't any additional letters Later on and therefore should be the word "include". The word “addict” is from the BIP39 wordlist but you would have utilised “addi” for “addict”. If you https://bookmarkick.com/story19066846/the-basic-principles-of-bip39-passphrase-generator