The definition for negate is "To make invalid." Used in a sentence: Paula negated Tiffany's argument by proving that her main premise was false. The definition for facade is "false or superficial appearance.", the definition for negate is "To make invalid.", and the definition for mandate is "An official order or commission to do something."

The definition for turpitude is "Essential baseness, depravity." Used in a sentence: The turpitude of the villain in the movie offended most audiences. The definition for derivative is "lacking originality.", the definition for embellish is "To decorate.", and the definition for appraise is "To evaluate the worth of."

The definition for melodious is "Having a pleasing melody." Used in a sentence: The melodious sounds of the symphony soothed Tim after his trying day. The definition for commemorate is "to mark by a ceremony.", the definition for curtail is "To make less.", and the definition for flagrant is "Noticeably offensive."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for condone is "to treat as acceptable.", the definition for commemorate is "To mark by a ceremony.", and the definition for brandish is "To shake or wave menacingly."

The definition for implement is "To carry out or accomplish." Used in a sentence: All Randolph needed to implement his plan was a moonless night and a long rope. The definition for iridescent is "having a lustrous or attractivve quality.", the definition for servile is "Fearfully submissive.", and the definition for foil is "One that enhances or underscores by contrast."