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 fraud is "trick.", the definition for derivative is "Lacking originality.", and the definition for deferment is "The act of delaying."

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 rail is "to scold in harsh language.", the definition for regurgitate is "To pour out or throw back.", and the definition for fickle is "Lacking constancy, changeable."

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 negate is "to make invalid.", the definition for corroborate is "To support with evidence.", and the definition for grandiose is "With an affectation of grandeur."

The definition for entangle is "To involve in trouble." Used in a sentence: Jonah regretted entangling Parker in his legal difficulties. The definition for incumbent is "necessary as a duty or responsibility.", the definition for oblivious is "Lacking awareness.", and the definition for lenient is "Mild or tolerant."

The definition for penurious is "Extrememly stingy." Used in a sentence: Ebenezer Scrooge was most penurious, refusing to give even a penny to charity. The definition for derelict is "abandoned.", the definition for belated is "Past the normal or proper time.", and the definition for comparable is "Similar, equivalent."