An 18-word mnemonic phrase boosts protection by including more words on the sequence. Here’s an illustration: Should you be Not sure about a specific word's spelling, use the research functionality (Ctrl+File on Windows/Command+F on Mac) within the BIP39 word list to locate the exact word. A sentence of this kind http://hectorswwo172.bearsfanteamshop.com/understanding-your-copyright-security-the-crucial-guide-to-bip39-passphrases-and-mnemonics