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 eloquent is "fluent, expressive.", the definition for fraud is "Trick.", and the definition for solace is "Source of consolation."

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 methodical is "performed in an orderly manner.", the definition for manifest is "Obvious.", and the definition for serenity is "Calmness."

The definition for turpitude is "Essential baseness, depravity." Used in a sentence: The turpitude of the villain in the movie offended most audiences. The definition for archetypal is "characteristic of the original model or perfect example.", the definition for defiant is "Showing bold resistance.", and the definition for pretentious is "Making unjustified claims."

The definition for melee is "A tumultuous fight among several people." Used in a sentence: After the game, a melee broke out between fans of the opposing teams. The definition for unscrupulous is "lacking principles.", the definition for repentant is "Feeling regret.", and the definition for insinuate is "To suggest indirectly."

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 liability is "a person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage.", the definition for stern is "Harsh, severe.", and the definition for recrimination is "A retaliatory accusation."