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 induce is "to influence or cause.", the definition for aerate is "To supply with air.", and the definition for rail is "To scold in harsh language."

The definition for procrastinate is "To put off intentionally." Used in a sentence: Yvonne's father urged, "Don't procrastinate. Clean your room right away." The definition for civility is "politeness.", the definition for equitable is "Fair and equal.", and the definition for comprehensible is "Understandable."

The definition for buffer is "Protective barrier." Used in a sentence: The dense trees acted as a buffer against the heavy rain. The definition for epitaph is "brief statement honoring a dead person.", the definition for mediate is "To come between parties in order to reconcile.", and the definition for benevolent is "Kind, helpful."

The definition for fidelity is "State of being faithful." Used in a sentence: Unlike her fickle friend Benji, May Belle was known for her fidelity. The definition for heed is "to pay attention to.", the definition for combustion is "Act of burning.", and the definition for inviolable is "Secure from assault of trespass."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for demeanor is "behavior towards others.", the definition for foil is "One that enhances or underscores by contrast.", and the definition for combative is "Eager to fight."