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 heinous is "shockingly evil.", the definition for censure is "To find fault with.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for composed is "Calm." Used in a sentence: Although her stomach was in knots, the actress appeared perfectly composed when she took the stage. The definition for genial is "sympathetic, friendly.", the definition for heinous is "Shockingly evil.", and the definition for preclude is "To rule out in advance."

The definition for extant is "Currently existing." Used in a sentence: Some consider Clint Eastwood the greatest extant American director. The definition for oblivious is "lacking awareness.", the definition for drub is "To defeat decisively.", and the definition for pathos is "Sympathetic pity."

The definition for gruff is "Rough or stern in manner or speech." Used in a sentence: Heidi's grandfather was gruff, barking stern orders and hardly smiling. The definition for disconcert is "to throw into confusion.", the definition for precept is "A general rule of action.", and the definition for flourish is "To make bold, sweeping gestures."

The definition for censure is "To find fault with." Used in a sentence: The critical teacher was quick to censure her students for even small mistakes. The definition for extenuating is "partially excusing.", the definition for sociable is "Inclined to seek companionship.", and the definition for incisive is "Impressively direct and decisive."