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 periodic is "occurring at regular intervals.", the definition for exception is "A case to which the rule does not apply.", and the definition for illuminate is "To make clear."

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 accessible is "easy to reach or to approach.", the definition for interminable is "Never ending, or seemingly endless.", and the definition for solace is "Source of consolation."

The definition for repentant is "Feeling regret." Used in a sentence: The repentant Dana admitted to cheating on the test. The definition for parity is "equality.", the definition for fickle is "Lacking constancy, changeable.", and the definition for placebo is "An inactive substance used in medical testing."

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 awe is "emotion combining dread and wonder.", the definition for unscrupulous is "Lacking principles.", and the definition for implausible is "Unbelievable."

The definition for oblivious is "Lacking awareness." Used in a sentence: Love–struck Charlie was oblivious to everyone but the object of his affection. The definition for pallid is "lacking color.", the definition for fraud is "Trick.", and the definition for discern is "To recognize as separate as distinct."