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 pomp is "showy display.", the definition for precept is "A general rule of action.", and the definition for eloquent is "Fluent, expressive."

The definition for surplus is "Excess." Used in a sentence: Trevor decided to freeze the surplus chili for next week's tailgate party. The definition for inviolable is "secure from assault of trespass.", the definition for adversary is "One who opposes or resists.", and the definition for opportune is "Suitable or convenient."

The definition for rail is "To scold in harsh language." Used in a sentence: Clay began to cry as his irate manager railed at him for missing the deadline. The definition for regale is "to amuse.", the definition for revoke is "To cancel by taking back.", and the definition for beneficial is "Helpful."

The definition for foil is "One that enhances or underscores by contrast." Used in a sentence: The sweet cookie was a perfect foil to the sour lemon sorbet. The definition for frugal is "thrifty, cheap.", the definition for benefactor is "One who offers financial help.", and the definition for straddle is "To favor opposing sides."

The definition for onset is "Beginning." Used in a sentence: Crocuses bloom at the onset of spring, sometimes even before the snow melts. The definition for comparable is "similar, equivalent.", the definition for deferment is "The act of delaying.", and the definition for elate is "To fill with joy."