BIP39 stands for Bitcoin Enhancement Proposal 39. The words are selected from a certain list of 2048 prevalent English words which can be accustomed to the deliver a binary seed (your non-public critical). This extra complexity boosts the danger of misplacing the passphrase, and therefore getting rid of your copyright. https://mnobookmarks.com/story18787311/not-known-facts-about-bip39-english-words