Bip39 Word List Booklet A BIP39 mnemonic sentence is really a set of words (most commonly twelve or 24) that we will connect with a lot more efficiently than other figures that are not words (bits and figures and the like). BIP39's intent in introducing the use of mnemonic words https://bookmarknap.com/story8806903/from-bip39-import-mnemonic-the-fact-about-bip39-phrase-that-no-one-is-suggesting