For words that have only 3 letters, there's no 4th letter. Such as with the word “increase”, there isn't any additional letters afterwards and thus must be the word "add". The word “addict” is during the BIP39 wordlist however , you might have employed “addi” for “addict”. Unlock your digital https://socialdummies.com/story3920058/a-secret-weapon-for-bip39-words-to-numbers