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 discern is "to recognize as separate as distinct.", the definition for advantageous is "Giving an advantage.", and the definition for punctual is "On time."

The definition for combative is "Eager to fight." Used in a sentence: The teacher suggested the combative student channel his aggression into boxing. The definition for rancorous is "marked by deep ill–will.", the definition for epitaph is "Brief statement honoring a dead person.", and the definition for obnoxious is "Highly offensive."

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 pomp is "showy display.", the definition for trove is "Valuable collection.", and the definition for demeanor is "Behavior towards others."

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 manifest is "obvious.", the definition for flaw is "An imperfection.", and the definition for corrective is "Intended to correct."

The definition for oblivious is "Lacking awareness." Used in a sentence: Love–struck Charlie was oblivious to everyone but the object of his affection. The definition for ethical is "conforming to accepted standards.", the definition for eloquent is "Fluent, expressive.", and the definition for pallid is "Lacking color."