BIP39 means Bitcoin Enhancement Proposal 39. The words are picked from a certain list of 2048 typical English words that may be used to the deliver a binary seed (your personal key). This information describes BIP39, the standard that defines how seed phrases are created, and summarizes how BIP32 and https://royalbookmarking.com/story18796103/bip39-phrase-generator-can-be-fun-for-anyone