The definition for iridescent is "Having a lustrous or attractivve quality." Used in a sentence: The movie star's iridescent presence charmed even the hardened reporter. The definition for egotist is "self–important person.", the definition for manifest is "Obvious.", and the definition for promote is "To contribute to the growth or prosperity of."

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 regurgitate is "to pour out or throw back.", the definition for egotist is "Self–important person.", and the definition for comparable is "Similar, equivalent."

The definition for duplicity is "Deceptive thought, speech, or action." Used in a sentence: The life of an undercover detective is filed with necessary duplicity. The definition for compulsion is "an irresistible impulse.", the definition for comparable is "Similar, equivalent.", and the definition for defiant is "Showing bold resistance."

The definition for extenuating is "Partially excusing." Used in a sentence: The extenuating circumstance of Calvin's illness caused the teacher to excuse his lateness. The definition for flaunt is "to display showily.", the definition for parity is "Equality.", and the definition for comprehensible is "Understandable."

The definition for solace is "Source of consolation." Used in a sentence: Parents' weekend was a solace to Marjorie, whose beloved daughter had left for college. The definition for eloquent is "fluent, expressive.", the definition for impenitent is "Lacking remorse.", and the definition for melodious is "Having a pleasing melody."