The definition for stifle is "To repress or discourage." Used in a sentence: Amy tried ineffectively to stifle her giggles after she read Susan's note in class. The definition for abate is "become less in amount or intensity.", the definition for unscrupulous is "Lacking principles.", and the definition for drab is "Dull, monotonous."

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 beneficial is "helpful.", the definition for straddle is "To favor opposing sides.", and the definition for appalling is "Inspiring dismay or disgust."

The definition for buffer is "Protective barrier." Used in a sentence: The dense trees acted as a buffer against the heavy rain. The definition for appalling is "inspiring dismay or disgust.", the definition for negate is "To make invalid.", and the definition for oblivious is "Lacking awareness."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for melodious is "having a pleasing melody.", the definition for incumbent is "Necessary as a duty or responsibility.", and the definition for antidote is "Something that relieves or counteracts."

The definition for melodious is "Having a pleasing melody." Used in a sentence: The melodious sounds of the symphony soothed Tim after his trying day. The definition for methodical is "performed in an orderly manner.", the definition for fragile is "Delicate.", and the definition for serenity is "Calmness."