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 appalling is "inspiring dismay or disgust.", the definition for scamper is "To run quickly.", and the definition for manifest is "Obvious."

The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for derelict is "abandoned.", the definition for awe is "Emotion combining dread and wonder.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for inflammatory is "Tending to excite anger." Used in a sentence: Garth's inflammatory remarks at the party made Gwen furious. The definition for heed is "to pay attention to.", the definition for pomp is "Showy display.", and the definition for ethical is "Conforming to accepted standards."

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 eloquent is "fluent, expressive.", the definition for aerate is "To supply with air.", and the definition for intricate is "Having complex and interrelated parts."

The definition for liability is "A person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage." Used in a sentence: Kevin's growing fatigue was a liability as he attempted to climb the steep hill. The definition for demean is "to lower status.", the definition for commemorate is "To mark by a ceremony.", and the definition for mundane is "Practical, ordinary."