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 rancorous is "marked by deep ill–will.", the definition for absolve is "To forgive; to free from guilt.", and the definition for plaudits is "Enthusiastic approval."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for insolence is "boldness or rudeness.", the definition for ploy is "A contrived plan.", and the definition for fraud is "Trick."

The definition for condone is "To treat as acceptable." Used in a sentence: Crystal condoned her friend's late arrival because she found it hard to be on time herself. The definition for regale is "to amuse.", the definition for procrastinate is "To put off intentionally.", and the definition for frugal is "Thrifty, cheap."

The definition for indecorous is "In bad taste." Used in a sentence: My parents banned Chad from our house because of his indecorous behavior at dinner. The definition for extant is "currently existing.", the definition for celebrated is "Widely known, respected.", and the definition for condone is "To treat as acceptable."

The definition for ethical is "Conforming to accepted standards." Used in a sentence: Mary did the ethical thing and turned in the diamond necklace she found. The definition for periodic is "occurring at regular intervals.", the definition for benefactor is "One who offers financial help.", and the definition for aerate is "To supply with air."