BIP39 means Bitcoin Improvement Proposal 39. The words are picked from a selected list of 2048 widespread English words which can be utilized to the make a binary seed (your private critical). If you're unsure about a certain word's spelling, use the search perform (Ctrl+File on Windows/Command+F on Mac) within https://social4geek.com/story4361696/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator