For words that have only three letters, there's no 4th letter. For instance with the word “add”, there are no much more letters Later on and thus needs to be the word "incorporate". The word “addict” is within the BIP39 wordlist but you would've used “addi” for “addict”. gravity trophy https://yesbookmarks.com/story18918537/invalid-bip39-phrase-things-to-know-before-you-buy