BIP39 stands for Bitcoin Enhancement Proposal 39. The words are picked from a selected list of 2048 widespread English words that may be used to the produce a binary seed (your personal key). Standard recovery phrases use a specific list of 2048 words next the BIP39 standard (Bitcoin Improvement Proposal https://keybookmarks.com/story19641465/top-latest-five-bip39-seed-phrase-mnemonics-generator-urban-news