Bip39 Mnemonic. A BIP39 mnemonic sentence is usually a list of words (most often 12 or 24) that we are able to interact with a lot more efficiently than other figures that are not words (bits and numbers plus the like). BIP39's reason in introducing the usage of mnemonic words https://adirectoryplace.com/listings13149519/bip39-word-list-numbers-https-linktr-ee-bip39-an-unbiased-view-of-bip39-passphrase