BIP39 stands for Bitcoin Advancement Proposal 39. The words are chosen from a selected list of 2048 popular English words which may be used to the deliver a binary seed (your private critical). Standard recovery phrases use a certain list of 2048 words next the BIP39 standard (Bitcoin Advancement Proposal https://bookmarkinglife.com/story4323135/helping-the-others-realize-the-advantages-of-bip39-seed-phrase-mnemonics-generator