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 surplus is "excess.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for regurgitate is "To pour out or throw back."

The definition for impenitent is "Lacking remorse." Used in a sentence: The impenitent criminal received a harsh penalty, but his remorseful accomplice was released. The definition for corrosive is "bitingly sarcastic.", the definition for methodical is "Performed in an orderly manner.", and the definition for appraise is "To evaluate the worth of."

The definition for interminable is "Never ending, or seemingly endless." Used in a sentence: The impatient Zoe found the longwinded lecture interminable. The definition for procrastinate is "to put off intentionally.", the definition for pantomime is "Telling a story through gestures.", and the definition for pretentious is "Making unjustified claims."

The definition for turmoil is "Extreme confusion, agitation." Used in a sentence: The windstorm caused such turmoil in the lake that the sailboat capsized. The definition for dubious is "questionable.", the definition for onset is "Beginning.", and the definition for prominence is "Importance."

The definition for revive is "To bring back to life." Used in a sentence: Hank tried to revive Clare's interest in the project, but her enthusiasm had expired. The definition for serenity is "calmness.", the definition for onset is "Beginning.", and the definition for pantomime is "Telling a story through gestures."