An eighteen-word mnemonic phrase boosts safety by adding further words into the sequence. Below’s an example: Standard recovery phrases use a certain list of 2048 words adhering to the BIP39 standard (Bitcoin Advancement Proposal 39). You could verify If the words are Section of the BIP39 list employing these methods: https://bookmarkdistrict.com/story18900158/fascination-about-bip39-english-words