zxcvbn and Diceware don't mix.<p>Sure, you can run zxcvbn over a Diceware passphrase, but it's meaningless, since the whole premise of Diceware is that <i>the attacker may know that you're using Diceware</i>. It is designed with that conservative mindset.<p>If you don't care about that aspect, there are better ways to derive passphrases than Diceware.<p>Every Diceware word yields 12.9 bits of entropy, so your example passphrase yields 90 bits, not 117.