BIP39 stands for Bitcoin Enhancement Proposal 39. The words are picked from a selected list of 2048 frequent English words which can be used to the crank out a binary seed (your personal important). Standard recovery phrases use a specific list of 2048 words pursuing the BIP39 standard (Bitcoin Enhancement https://thesocialvibes.com/story4976879/not-known-factual-statements-about-bip39-explained