Bip39-Standalone Some words are shorter than 4 letters, including the word “act”. Other words are for a longer period than 4 letters, such as “summary”. The application of a wallet utilizes a complete set of words taken from the vocabulary; at that each word is assigned to a specific quantity. https://redhotbookmarks.com/story18487796/bip-44-word-list-considerations-to-know-about-seed-phrase-generator