Bip39 Word List Bitcoin A BIP39 mnemonic sentence is actually a list of words (most commonly 12 or 24) that we will interact with much more successfully than other people that are not words (bits and numbers along with the like). BIP39's intent in introducing the usage of mnemonic words https://bookmark-media.com/story18701824/bip39-api-not-known-details-about-bip39-word-list