BIP39 stands for Bitcoin Advancement Proposal 39. The words are picked from a selected list of 2048 common English words which can be utilized to the deliver a binary seed (your personal crucial). Standard recovery phrases use a selected list of 2048 words pursuing the BIP39 standard (Bitcoin Advancement Proposal https://ok-social.com/story4472261/facts-about-bip39-seed-phrase-github-revealed