For words that have only 3 letters, there's no 4th letter. For instance with the word “increase”, there isn't any a lot more letters Later on and thus needs to be the word "increase". The word “addict” is while in the BIP39 wordlist but you might have utilised “addi” for https://leftbookmarks.com/story18870402/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting