The definition for augment is "To make greater." Used in a sentence: Wanda read the dictionary every night to augment her vocabulary. The definition for commemorate is "to mark by a ceremony.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for combustion is "Act of burning."

The definition for rail is "To scold in harsh language." Used in a sentence: Clay began to cry as his irate manager railed at him for missing the deadline. The definition for archaic is "characteristic of an earlier time.", the definition for mundane is "Practical, ordinary.", and the definition for diffident is "Lacking self–confidence."

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 interminable is "never ending, or seemingly endless.", the definition for melodious is "Having a pleasing melody.", and the definition for periodic is "Occurring at regular intervals."

The definition for salvage is "To save from ruin." Used in a sentence: After the fire, Mrs. Han tried to salvage her family photos from the wreckage. The definition for regurgitate is "to pour out or throw back.", the definition for intricate is "Having complex and interrelated parts.", and the definition for duplicity is "Deceptive thought, speech, or action."

The definition for gargantuan is "Gigantic." Used in a sentence: The gargantuan monster towered over the ten–story bulding. The definition for regale is "to amuse.", the definition for catastrophic is "Relating to extreme misfortune.", and the definition for straddle is "To favor opposing sides."