The definition for appraise is "To evaluate the worth of." Used in a sentence: Simone, an expert in African sculpture, was asked to appraise the ambassador's collection of masks. The definition for periodic is "occurring at regular intervals.", the definition for accessible is "Easy to reach or to approach.", and the definition for eulogy is "Speech or writing in praise of deceased."

The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for regurgitate is "to pour out or throw back.", the definition for benevolent is "Kind, helpful.", and the definition for preclude is "To rule out in advance."

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 defiant is "showing bold resistance.", the definition for insinuate is "To suggest indirectly.", and the definition for exception is "A case to which the rule does not apply."

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 adversary is "one who opposes or resists.", the definition for flaw is "An imperfection.", and the definition for beneficial is "Helpful."

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 precept is "a general rule of action.", the definition for impenitent is "Lacking remorse.", and the definition for periodic is "Occurring at regular intervals."