The definition for raucous is "Noisy, rowdy." Used in a sentence: Serena, who preferred quiet conversation, left the rancous party. The definition for incumbent is "necessary as a duty or responsibility.", the definition for accentuate is "To emphasize.", and the definition for trove is "Valuable collection."

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 flaunt is "to display showily.", the definition for punctual is "On time.", and the definition for flagrant is "Noticeably offensive."

The definition for dubious is "Questionable." Used in a sentence: Karl found Kevin's claim that he was sick dubious, as he had just seen him playing football. The definition for ploy is "a contrived plan.", the definition for preclude is "To rule out in advance.", and the definition for commemorate is "To mark by a ceremony."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for fidelity is "state of being faithful.", the definition for induce is "To influence or cause.", and the definition for duplicity is "Deceptive thought, speech, or action."

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 pallid is "lacking color.", the definition for buffer is "Protective barrier.", and the definition for comparable is "Similar, equivalent."