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 periodic is "occurring at regular intervals.", the definition for pomp is "Showy display.", and the definition for extant is "Currently existing."

The definition for combustion is "Act of burning." Used in a sentence: Campers must use fire with great caution to prevent combustion of the parched brush. The definition for unscrupulous is "lacking principles.", the definition for exception is "A case to which the rule does not apply.", and the definition for negate is "To make invalid."

The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for raucous is "noisy, rowdy.", the definition for trove is "Valuable collection.", and the definition for negate is "To make invalid."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for discern is "to recognize as separate as distinct.", the definition for rehash is "To discuss again.", and the definition for compulsion is "An irresistible impulse."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for stern is "harsh, severe.", the definition for revoke is "To cancel by taking back.", and the definition for corrosive is "Bitingly sarcastic."