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 rehash is "to discuss again.", the definition for flagrant is "Noticeably offensive.", and the definition for advantageous is "Giving an advantage."

The definition for scamper is "To run quickly." Used in a sentence: The frightened kitten scampered away from the butterfly. The definition for buffer is "protective barrier.", the definition for absolve is "To forgive; to free from guilt.", and the definition for extenuating is "Partially excusing."

The definition for implausible is "Unbelievable." Used in a sentence: Claudia's implausible excuse failed to convince her teacher. The definition for colossal is "immense, enormous.", the definition for melodious is "Having a pleasing melody.", and the definition for accessible is "Easy to reach or to approach."

The definition for impenitent is "Lacking remorse." Used in a sentence: The impenitent criminal received a harsh penalty, but his remorseful accomplice was released. The definition for corrosive is "bitingly sarcastic.", the definition for surplus is "Excess.", and the definition for clarity is "Clearness."

The definition for elate is "To fill with joy." Used in a sentence: It elated Margaret to be awarded first place in the science fair. The definition for recrimination is "a retaliatory accusation.", the definition for clairvoyance is "Ability to see things beyond ordinary perception.", and the definition for comparable is "Similar, equivalent."