The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for corroborate is "to support with evidence.", the definition for fraud is "Trick.", and the definition for refurbish is "To brighten or freshen."

The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for cunning is "showing clever insight.", the definition for exception is "A case to which the rule does not apply.", and the definition for demean is "To lower status."

The definition for procrastinate is "To put off intentionally." Used in a sentence: Yvonne's father urged, "Don't procrastinate. Clean your room right away." The definition for fidelity is "state of being faithful.", the definition for adversary is "One who opposes or resists.", and the definition for commemorate is "To mark by a ceremony."

The definition for flaw is "An imperfection." Used in a sentence: The otherwise perfect diamond had a tiny flaw that reduced its value. The definition for scamper is "to run quickly.", the definition for mundane is "Practical, ordinary.", and the definition for augment is "To make greater."

The definition for raucous is "Noisy, rowdy." Used in a sentence: Serena, who preferred quiet conversation, left the rancous party. The definition for implement is "to carry out or accomplish.", the definition for heed is "To pay attention to.", and the definition for belated is "Past the normal or proper time."