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 benefactor is "one who offers financial help.", the definition for melee is "A tumultuous fight among several people.", and the definition for dubious is "Questionable."

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 mundane is "practical, ordinary.", the definition for penurious is "Extrememly stingy.", and the definition for unscrupulous is "Lacking principles."

The definition for beneficial is "Helpful." Used in a sentence: there is no doubt that eating vegetables is beneficial to one's health. The definition for combustion is "act of burning.", the definition for recrimination is "A retaliatory accusation.", and the definition for flagrant is "Noticeably offensive."

The definition for periodic is "Occurring at regular intervals." Used in a sentence: The periodic innterruptions of the cuckoo clock prevented Li from concentrating. The definition for revoke is "to cancel by taking back.", the definition for corroborate is "To support with evidence.", and the definition for illuminate is "To make clear."

The definition for benefactor is "One who offers financial help." Used in a sentence: Michael's aunt and benefactor paid his college tuition. The definition for pathos is "sympathetic pity.", the definition for precept is "A general rule of action.", and the definition for unscrupulous is "Lacking principles."