The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for ploy is "a contrived plan.", the definition for exalt is "To elevate by praise.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for rehash is "To discuss again." Used in a sentence: "Sandra," said her mother, "I am tired of rehashing this same topic over and over." The definition for defiant is "showing bold resistance.", the definition for iridescent is "Having a lustrous or attractivve quality.", and the definition for avian is "Relating to birds."

The definition for stifle is "To repress or discourage." Used in a sentence: Amy tried ineffectively to stifle her giggles after she read Susan's note in class. The definition for disdain is "feeling of contempt.", the definition for duplicity is "Deceptive thought, speech, or action.", and the definition for illuminate is "To make clear."

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 onset is "beginning.", the definition for curtail is "To make less.", and the definition for induce is "To influence or cause."

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 flourish is "to make bold, sweeping gestures.", the definition for onset is "Beginning.", and the definition for beneficial is "Helpful."