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 scamper is "to run quickly.", the definition for serenity is "Calmness.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for demeanor is "Behavior towards others." Used in a sentence: Carlos was well liked because of his charming demeanor. The definition for facade is "false or superficial appearance.", the definition for incongruous is "Not harmonious, incompatible.", and the definition for prune is "To reduce by removing excess."

The definition for authoritarian is "Favoring absolute obedience to authority." Used in a sentence: Marco's authoritarian mother never allowed him to watch more than one hour of television a day. The definition for implausible is "unbelievable.", the definition for lenient is "Mild or tolerant.", and the definition for corroborate is "To support with evidence."

The definition for flagrant is "Noticeably offensive." Used in a sentence: The executive was fired for his flagrant abuse of the company expense account. The definition for distortion is "the act of twisting out of shape.", the definition for naive is "Lacking worldy wisdom.", and the definition for lenient is "Mild or tolerant."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for manifest is "obvious.", the definition for demeanor is "Behavior towards others.", and the definition for inflammatory is "Tending to excite anger."