Bip39 Word List Github Some words are shorter than four letters, including the word “act”. Other words are for a longer time than 4 letters, for instance “abstract”. Make sure you make sure to permit recovery from mnemonic phrases that have invalid checksums (or that you don't have the wordlist) https://hubwebsites.com/story19881087/bip39-docs-considerations-to-know-about-seed-phrase-generator