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 flaunt is "to display showily.", the definition for futile is "Without purpose, completely ineffective.", and the definition for iridescent is "Having a lustrous or attractivve quality."

The definition for deferment is "The act of delaying." Used in a sentence: Sybil was frustrated by the deferment of her much anticipated vacation. The definition for repel is "to resist, reject.", the definition for finite is "Having definite limits.", and the definition for appraise is "To evaluate the worth of."

The definition for demean is "To lower status." Used in a sentence: The embarrassing photograph demeaned the candidate in the eyes of the voters. The definition for incidental is "minor.", the definition for avian is "Relating to birds.", and the definition for precept is "A general rule of action."

The definition for exasperation is "The state of being irritated." Used in a sentence: The longer Jorge waited in line at the ticket counter, the more his exasperation grew. The definition for insolence is "boldness or rudeness.", the definition for benefactor is "One who offers financial help.", and the definition for censure is "To find fault with."

The definition for cunning is "Showing clever insight." Used in a sentence: The general devised a cunning strategy to outfox the enemy. The definition for accentuate is "to emphasize.", the definition for iridescent is "Having a lustrous or attractivve quality.", and the definition for serenity is "Calmness."