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 abate is "become less in amount or intensity.", the definition for grandiose is "With an affectation of grandeur.", and the definition for serenity is "Calmness."

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 incumbent is "necessary as a duty or responsibility.", the definition for refurbish is "To brighten or freshen.", and the definition for untenable is "Not able to be defended."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for fraud is "trick.", the definition for futile is "Without purpose, completely ineffective.", and the definition for eloquent is "Fluent, expressive."

The definition for commemorate is "To mark by a ceremony." Used in a sentence: Each year, the Franklins commemorate their anniversary by visiting the site of their first date. The definition for camaraderie is "spirit of friendship.", the definition for fragile is "Delicate.", and the definition for mundane is "Practical, ordinary."

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 penurious is "extrememly stingy.", the definition for futile is "Without purpose, completely ineffective.", and the definition for exalt is "To elevate by praise."