Bip39 is not defined https://www.pexels.com/@adele-fanetti-2153528476/ This decentralized seed phrase backup system makes sure that whether or not just one component is misplaced or compromised, your resources continue being Protected and recoverable. For words that only have three letters, there isn't a 4th letter. For example Along with the word “insert”, https://thesocialcircles.com/story6378665/bip39-word-list-generator-the-smart-trick-of-bip39-word-list-github-that-no-one-is-discussing-https-linktr-ee-bip39