Bip39 Standard Some words are shorter than 4 letters, including the word “act”. Other words are extended than four letters, for instance “abstract”. The program of the wallet takes advantage of a whole list of words taken from the vocabulary; at that every word is assigned to a certain quantity. https://bookmarklinx.com/story18621860/seed-function-in-r-little-known-facts-about-bip39-word-list