BIP39 means Bitcoin Enhancement Proposal 39. The words are picked from a selected list of 2048 typical English words which may be utilized to the produce a binary seed (your private vital). If you are Doubtful about a specific word's spelling, utilize the lookup functionality (Ctrl+File on Windows/Command+F on Mac) https://sound-social.com/story8848468/not-known-facts-about-bip39-english-words