An 18-word mnemonic phrase will increase security by introducing further words towards the sequence. Right here’s an example: This text describes BIP39, the standard that defines how seed phrases are made, and summarizes how BIP32 and BIP44 standards permit wallets to supercharge seed phrases to aid lots of extra keys. https://webnowmedia.com/story4200133/the-2-minute-rule-for-bip39-all-words