For words that have only 3 letters, there's no 4th letter. For example with the word “insert”, there won't be any additional letters afterwards and so have to be the word "add". The word “addict” is from the BIP39 wordlist however, you would've employed “addi” for “addict”. Unlock your electronic https://binksites.com/story8671869/phrases-with-bit-an-overview