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 fickle is "lacking constancy, changeable.", the definition for rail is "To scold in harsh language.", and the definition for heed is "To pay attention to."

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 conduit is "means for transmitting or distributing.", the definition for refurbish is "To brighten or freshen.", and the definition for extenuating is "Partially excusing."

The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for immoderate is "beyond usual or proper limits.", the definition for exception is "A case to which the rule does not apply.", and the definition for appraise is "To evaluate the worth of."

The definition for combustion is "Act of burning." Used in a sentence: Campers must use fire with great caution to prevent combustion of the parched brush. The definition for redouble is "to make twice as great.", the definition for discern is "To recognize as separate as distinct.", and the definition for heed is "To pay attention to."

The definition for condone is "To treat as acceptable." Used in a sentence: Crystal condoned her friend's late arrival because she found it hard to be on time herself. The definition for moderate is "tending toward the average.", the definition for implement is "To carry out or accomplish.", and the definition for corrosive is "Bitingly sarcastic."