BIP39 stands for Bitcoin Advancement Proposal 39. The words are selected from a certain list of 2048 prevalent English words which can be accustomed to the make a binary seed (your non-public key). Standard recovery phrases use a particular list of 2048 words adhering to the BIP39 standard (Bitcoin Enhancement https://ticketsbookmarks.com/story18941020/fascination-about-invalid-bip39-phrase