BIP39 stands for Bitcoin Improvement Proposal 39. The words are selected from a specific list of 2048 prevalent English words which can be used to the crank out a binary seed (your private important). Standard recovery phrases use a particular list of 2048 words next the BIP39 standard (Bitcoin Advancement https://socialinplace.com/story4441441/the-definitive-guide-to-bip39-seed-phrase