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 exalt is "to elevate by praise.", the definition for buffer is "Protective barrier.", and the definition for archaic is "Characteristic of an earlier time."

The definition for dubious is "Questionable." Used in a sentence: Karl found Kevin's claim that he was sick dubious, as he had just seen him playing football. The definition for indecorous is "in bad taste.", the definition for ethical is "Conforming to accepted standards.", and the definition for augment is "To make greater."

The definition for raucous is "Noisy, rowdy." Used in a sentence: Serena, who preferred quiet conversation, left the rancous party. The definition for elusive is "hard to grasp.", the definition for fickle is "Lacking constancy, changeable.", and the definition for buffer is "Protective barrier."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for serenity is "calmness.", the definition for insinuate is "To suggest indirectly.", and the definition for trove is "Valuable collection."

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 civility is "politeness.", the definition for corrective is "Intended to correct.", and the definition for derelict is "Abandoned."