BIP39 means Bitcoin Advancement Proposal 39. The words are selected from a selected list of 2048 prevalent English words which can be utilized to the generate a binary seed (your non-public vital). Standard recovery phrases use a selected list of 2048 words pursuing the BIP39 standard (Bitcoin Enhancement Proposal 39). https://bookmark-media.com/story19073522/not-known-facts-about-bip39-english-words