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 anthology is "a collection of selected literary pieces.", the definition for repentant is "Feeling regret.", and the definition for prudent is "Marked by wisdom, shrewd."

The definition for pathos is "Sympathetic pity." Used in a sentence: The soldiers cherished the kindly Nurse Nightingale for her pathos. The definition for comprehensible is "understandable.", the definition for interminable is "Never ending, or seemingly endless.", and the definition for revive is "To bring back to life."

The definition for accentuate is "To emphasize." Used in a sentence: Carla used red ribbons to accentuate the coppery tones in her hair. The definition for diffident is "lacking self–confidence.", the definition for advantageous is "Giving an advantage.", and the definition for ploy is "A contrived plan."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for disdain is "feeling of contempt.", the definition for naive is "Lacking worldy wisdom.", and the definition for gargantuan is "Gigantic."

The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for prudent is "marked by wisdom, shrewd.", the definition for impenitent is "Lacking remorse.", and the definition for regale is "To amuse."