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 augment is "to make greater.", the definition for indecorous is "In bad taste.", and the definition for composed is "Calm."

The definition for procrastinate is "To put off intentionally." Used in a sentence: Yvonne's father urged, "Don't procrastinate. Clean your room right away." The definition for refurbish is "to brighten or freshen.", the definition for epitaph is "Brief statement honoring a dead person.", and the definition for prominence is "Importance."

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 mediate is "to come between parties in order to reconcile.", the definition for ethical is "Conforming to accepted standards.", and the definition for benevolent is "Kind, helpful."

The definition for aerate is "To supply with air." Used in a sentence: Every spring, Soloman used his tiller to aerate the compact soil. The definition for unscrupulous is "lacking principles.", the definition for absolve is "To forgive; to free from guilt.", and the definition for cunning is "Showing clever insight."

The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for pomp is "showy display.", the definition for moderate is "Tending toward the average.", and the definition for lurid is "Causing horror, shocking."