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 duplicity is "deceptive thought, speech, or action.", the definition for precept is "A general rule of action.", and the definition for insinuate is "To suggest indirectly."

The definition for punctual is "On time." Used in a sentence: Ron was worried when the usually punctual Amanda was late for the show. The definition for euphoria is "feeling of great happiness.", the definition for dubious is "Questionable.", and the definition for scamper is "To run quickly."

The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for demeanor is "behavior towards others.", the definition for revive is "To bring back to life.", and the definition for stifle is "To repress or discourage."

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 hedonism is "belief that pleasure is the sole aim of life.", the definition for compulsion is "An irresistible impulse.", and the definition for defiant is "Showing bold resistance."

The definition for surplus is "Excess." Used in a sentence: Trevor decided to freeze the surplus chili for next week's tailgate party. The definition for pretense is "false intention or purpose.", the definition for combustion is "Act of burning.", and the definition for euphoria is "Feeling of great happiness."