Bip39 Last Word Checksum A BIP39 mnemonic sentence is actually a set of words (most often twelve or 24) that we can easily connect with far more efficiently than other characters that aren't words (bits and numbers as well as like). BIP39's function in introducing the use of mnemonic words https://hindibookmark.com/story20197323/bip39-reddit-an-unbiased-view-of-seed-phrase-generator