An eighteen-word mnemonic phrase will increase security by adding excess words towards the sequence. Below’s an example: This post clarifies BIP39, the standard that defines how seed phrases are created, and summarizes how BIP32 and BIP44 standards allow for wallets to supercharge seed phrases to support numerous far more keys. https://bookmarkbells.com/story19038982/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting