BIP39 means Bitcoin Enhancement Proposal 39. The words are picked from a certain list of 2048 widespread English words which may be accustomed to the make a binary seed (your personal essential). Standard recovery phrases use a selected list of 2048 words subsequent the BIP39 standard (Bitcoin Advancement Proposal 39). https://easiestbookmarks.com/story19069200/considerations-to-know-about-bip39-seed-phrase-generator