BIP39 means Bitcoin Improvement Proposal 39. The words are chosen from a particular list of 2048 common English words which may be accustomed to the create a binary seed (your private key). Standard recovery phrases use a specific list of 2048 words following the BIP39 standard (Bitcoin Advancement Proposal 39). https://opensocialfactory.com/story19311024/top-latest-five-bip39-seed-phrase-mnemonics-generator-urban-news