The definition for corroborate is "To support with evidence." Used in a sentence: "Unless you can corroborate your story, it will not be admissible in court," the attorney told his client. The definition for onset is "beginning.", the definition for negate is "To make invalid.", and the definition for mundane is "Practical, ordinary."

The definition for fraud is "Trick." Used in a sentence: The con man's fraud involved selling swampland to gullible investors. The definition for duplicity is "deceptive thought, speech, or action.", the definition for heinous is "Shockingly evil.", and the definition for defiant is "Showing bold resistance."

The definition for regale is "To amuse." Used in a sentence: My clever brother Jeffrey regaled the dinner guests with tales of his adventures. The definition for meticulous is "extrememly careful regarding details.", the definition for advantageous is "Giving an advantage.", and the definition for buffer is "Protective barrier."

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 epistolary is "contained or carried on in letters.", the definition for augment is "To make greater.", and the definition for avian is "Relating to birds."

The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for revive is "to bring back to life.", the definition for intricate is "Having complex and interrelated parts.", and the definition for demean is "To lower status."