BIP39 means Bitcoin Improvement Proposal 39. The words are selected from a selected list of 2048 frequent English words that may be accustomed to the deliver a binary seed (your private critical). This article explains BIP39, the standard that defines how seed phrases are created, and summarizes how BIP32 and https://ztndz.com/story23675949/the-basic-principles-of-bip39-passphrase-generator