An eighteen-word mnemonic phrase improves security by including more words to the sequence. Right here’s an example: Standard recovery phrases use a specific list of 2048 words adhering to the BIP39 standard (Bitcoin Improvement Proposal 39). You could validate if your words are Component of the BIP39 list using these https://socialinplace.com/story4203609/new-step-by-step-map-for-bip39-english-words