The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for methodical is "performed in an orderly manner.", the definition for heed is "To pay attention to.", and the definition for surplus is "Excess."

The definition for revive is "To bring back to life." Used in a sentence: Hank tried to revive Clare's interest in the project, but her enthusiasm had expired. The definition for moderate is "tending toward the average.", the definition for aesthete is "Person having or affecting sensitivity to beauty.", and the definition for colossal is "Immense, enormous."

The definition for pallid is "Lacking color." Used in a sentence: The nurse was worried by the patient's pallid face and shallow breathing. The definition for combustion is "act of burning.", the definition for flaunt is "To display showily.", and the definition for induce is "To influence or cause."

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 placebo is "an inactive substance used in medical testing.", the definition for fickle is "Lacking constancy, changeable.", and the definition for aerate is "To supply with air."

The definition for flaunt is "To display showily." Used in a sentence: Sheila, who could not resist bragging, flaunted the "A" marked on her test paper. The definition for catastrophic is "relating to extreme misfortune.", the definition for stern is "Harsh, severe.", and the definition for serenity is "Calmness."