The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for revoke is "to cancel by taking back.", the definition for censure is "To find fault with.", and the definition for flourish is "To make bold, sweeping gestures."

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 opportune is "suitable or convenient.", the definition for finite is "Having definite limits.", and the definition for incongruous is "Not harmonious, incompatible."

The definition for preclude is "To rule out in advance." Used in a sentence: "Having cake now will preclude dessert later," said Amber's mother. The definition for indecorous is "in bad taste.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for revoke is "To cancel by taking back."

The definition for methodical is "Performed in an orderly manner." Used in a sentence: Oscar's methodical approach exasperated his free–spirited friend Ben. The definition for benefactor is "one who offers financial help.", the definition for heed is "To pay attention to.", and the definition for appraise is "To evaluate the worth of."

The definition for anthology is "A collection of selected literary pieces." Used in a sentence: The writer was thrilled when his story was included in an anthology of American masterpieces. The definition for aerate is "to supply with air.", the definition for defiant is "Showing bold resistance.", and the definition for diffident is "Lacking self–confidence."