The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for revoke is "to cancel by taking back.", the definition for raucous is "Noisy, rowdy.", and the definition for gargantuan is "Gigantic."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for inviolable is "secure from assault of trespass.", the definition for procrastinate is "To put off intentionally.", and the definition for proximity is "Closeness."

The definition for gargantuan is "Gigantic." Used in a sentence: The gargantuan monster towered over the ten–story bulding. The definition for liability is "a person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage.", the definition for revive is "To bring back to life.", and the definition for condone is "To treat as acceptable."

The definition for extol is "To praise highly." Used in a sentence: The statesman extolled the ambassador who single–handedly negotiated the peace treaty. The definition for combustion is "act of burning.", the definition for redouble is "To make twice as great.", and the definition for grandiose is "With an affectation of grandeur."

The definition for melodious is "Having a pleasing melody." Used in a sentence: The melodious sounds of the symphony soothed Tim after his trying day. The definition for rehash is "to discuss again.", the definition for perception is "Capacity for seeing or understanding.", and the definition for lurid is "Causing horror, shocking."