Bip39 Buffer Is Not Defined Some words are shorter than four letters, such as the word “act”. Other words are for a longer time than four letters, like “abstract”. One particular set of mnemonic can be utilized to make numerous addresses. This method of generating account was released in BIP32 https://bookmarkprobe.com/story18793225/bip39-ian-coleman-the-definitive-guide-to-bip39-phrase