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 negate is "to make invalid.", the definition for plaudits is "Enthusiastic approval.", and the definition for combative is "Eager to fight."

The definition for facade is "false or superficial appearance." Used in a sentence: Emily's smile is just a facade masking her broken heart. The definition for benefactor is "one who offers financial help.", the definition for stern is "Harsh, severe.", and the definition for archaic is "Characteristic of an earlier time."

The definition for trove is "Valuable collection." Used in a sentence: Walter's trove of vintage baseball cards was worth thousands of dollars. The definition for censure is "to find fault with.", the definition for moderate is "Tending toward the average.", and the definition for discern is "To recognize as separate as distinct."

The definition for mediate is "To come between parties in order to reconcile." Used in a sentence: The diplomatic Henry was able to mediate between the quarreling sisters. The definition for drab is "dull, monotonous.", the definition for onset is "Beginning.", and the definition for incisive is "Impressively direct and decisive."

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 flaw is "an imperfection.", the definition for trove is "Valuable collection.", and the definition for turpitude is "Essential baseness, depravity."