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 augment is "to make greater.", the definition for pathos is "Sympathetic pity.", and the definition for oblivious is "Lacking awareness."

The definition for prudent is "Marked by wisdom, shrewd." Used in a sentence: Manny was happy she followed Greg's prudent advice to study, as the test was difficult. The definition for redouble is "to make twice as great.", the definition for heed is "To pay attention to.", and the definition for sociable is "Inclined to seek companionship."

The definition for perception is "Capacity for seeing or understanding." Used in a sentence: His incredible perception made him the best detective on the force. The definition for entangle is "to involve in trouble.", the definition for impenitent is "Lacking remorse.", and the definition for fidelity is "State of being faithful."

The definition for benevolent is "Kind, helpful." Used in a sentence: Sherman revealed his benevolent side when he offered to help Carter with his homework. The definition for naive is "lacking worldy wisdom.", the definition for condone is "To treat as acceptable.", and the definition for frugal is "Thrifty, cheap."

The definition for placebo is "An inactive substance used in medical testing." Used in a sentence: Tom, who had taken the placebo, found that his allergy symptoms did not go away. The definition for incumbent is "necessary as a duty or responsibility.", the definition for exception is "A case to which the rule does not apply.", and the definition for antidote is "Something that relieves or counteracts."