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 insolence is "boldness or rudeness.", the definition for periodic is "Occurring at regular intervals.", and the definition for penurious is "Extrememly stingy."

The definition for commemorate is "To mark by a ceremony." Used in a sentence: Each year, the Franklins commemorate their anniversary by visiting the site of their first date. The definition for immoderate is "beyond usual or proper limits.", the definition for derelict is "Abandoned.", and the definition for heed is "To pay attention to."

The definition for elusive is "Hard to grasp." Used in a sentence: The words to the song are elusive, as the singer tends to mumble. The definition for repentant is "feeling regret.", the definition for combative is "Eager to fight.", and the definition for ecstatic is "Overwhelmingly emotional."

The definition for mediate is "To come between parties in order to reconcile." Used in a sentence: The diplomatic Henry was able to mediate between the quarreling sisters. The definition for disdain is "feeling of contempt.", the definition for insinuate is "To suggest indirectly.", and the definition for inviolable is "Secure from assault of trespass."

The definition for perception is "Capacity for seeing or understanding." Used in a sentence: His incredible perception made him the best detective on the force. The definition for inviolable is "secure from assault of trespass.", the definition for scapegoat is "Someone who bears the blame for others.", and the definition for extenuating is "Partially excusing."