BIP39 means Bitcoin Enhancement Proposal 39. The words are chosen from a specific list of 2048 typical English words that may be utilized to the crank out a binary seed (your personal critical). Standard recovery phrases use a selected list of 2048 words next the BIP39 standard (Bitcoin Advancement Proposal https://socialbraintech.com/story3968395/not-known-factual-statements-about-bip39-explained