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 ecstatic is "overwhelmingly emotional.", the definition for incidental is "Minor.", and the definition for fidelity is "State of being faithful."

The definition for recrimination is "A retaliatory accusation." Used in a sentence: Frank, who was wounded by Sally's remark, made a bitter recrimination. The definition for pathos is "sympathetic pity.", the definition for illuminate is "To make clear.", and the definition for immoderate is "Beyond usual or proper limits."

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 euphoria is "feeling of great happiness.", the definition for incidental is "Minor.", and the definition for condone is "To treat as acceptable."

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 onset is "beginning.", the definition for elate is "To fill with joy.", and the definition for rehash is "To discuss again."

The definition for compulsion is "An irresistible impulse." Used in a sentence: Tamar, a shoe fanatic, could not resist the compulsion to buy the shiny red boots. The definition for placebo is "an inactive substance used in medical testing.", the definition for flagrant is "Noticeably offensive.", and the definition for retroactive is "effective as of a prior time or condition."