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 regurgitate is "to pour out or throw back.", the definition for stealth is "The act of moving secretly or unnoticed.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for composed is "Calm." Used in a sentence: Although her stomach was in knots, the actress appeared perfectly composed when she took the stage. The definition for meticulous is "extrememly careful regarding details.", the definition for mandate is "An official order or commission to do something.", and the definition for procrastinate is "To put off intentionally."

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 euphoria is "feeling of great happiness.", the definition for distortion is "The act of twisting out of shape.", and the definition for appalling is "Inspiring dismay or disgust."

The definition for accommodate is "To give consideration to." Used in a sentence: The hospitable couple was happy to accommodate the needs of their finicky guest. The definition for stealth is "the act of moving secretly or unnoticed.", the definition for rancorous is "Marked by deep ill–will.", and the definition for fraud is "Trick."

The definition for untenable is "Not able to be defended." Used in a sentence: Rashid made the untenable statement that George Washington was the second president of the United States. The definition for buffoonery is "foolish behavior.", the definition for flaunt is "To display showily.", and the definition for mediate is "To come between parties in order to reconcile."