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 aesthete is "person having or affecting sensitivity to beauty.", the definition for appalling is "Inspiring dismay or disgust.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for oblivious is "lacking awareness.", the definition for recrimination is "A retaliatory accusation.", and the definition for mundane is "Practical, ordinary."

The definition for repel is "To resist, reject." Used in a sentence: The soldiers made a massive charge to repel the invaders. The definition for opportune is "suitable or convenient.", the definition for extant is "Currently existing.", and the definition for naive is "Lacking worldy wisdom."

The definition for stealth is "The act of moving secretly or unnoticed." Used in a sentence: The burglar took the ring by stealth, slipping it from the sleeping woman's finger. The definition for epistolary is "contained or carried on in letters.", the definition for promote is "To contribute to the growth or prosperity of.", and the definition for scamper is "To run quickly."

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 turmoil is "extreme confusion, agitation.", the definition for retroactive is "effective as of a prior time or condition.", and the definition for stern is "Harsh, severe."