Bip39 Online Some words are shorter than four letters, including the word “act”. Other words are longer than four letters, such as “abstract”. A person list of mnemonic may be used to produce several addresses. This method of making account was launched in BIP32 & BIP39 very long time back. https://mypresspage.com/story3971526/seed-phrase-generator-download-details-fiction-and-bip39