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 combustion is "act of burning.", the definition for genial is "Sympathetic, friendly.", and the definition for archaic is "Characteristic of an earlier time."

The definition for flaunt is "To display showily." Used in a sentence: Sheila, who could not resist bragging, flaunted the "A" marked on her test paper. The definition for prominence is "importance.", the definition for implausible is "Unbelievable.", and the definition for euphoria is "Feeling of great happiness."

The definition for methodical is "Performed in an orderly manner." Used in a sentence: Oscar's methodical approach exasperated his free–spirited friend Ben. The definition for duplicity is "deceptive thought, speech, or action.", the definition for insolence is "Boldness or rudeness.", and the definition for apathetic is "Showing little or no emotion."

The definition for mundane is "Practical, ordinary." Used in a sentence: The flighty Caroline could not be troubled with mundane tasks such as paying her bills. The definition for condone is "to treat as acceptable.", the definition for pretense is "False intention or purpose.", and the definition for oblivious is "Lacking awareness."

The definition for unscrupulous is "Lacking principles." Used in a sentence: The unscrupulous salesman was fired for lying to his customers. The definition for diffident is "lacking self–confidence.", the definition for corrective is "Intended to correct.", and the definition for benefactor is "One who offers financial help."