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 plaudits is "enthusiastic approval.", the definition for heed is "To pay attention to.", and the definition for heinous is "Shockingly evil."

The definition for foil is "One that enhances or underscores by contrast." Used in a sentence: The sweet cookie was a perfect foil to the sour lemon sorbet. The definition for adversary is "one who opposes or resists.", the definition for flaw is "An imperfection.", and the definition for aerate is "To supply with air."

The definition for prudent is "Marked by wisdom, shrewd." Used in a sentence: Manny was happy she followed Greg's prudent advice to study, as the test was difficult. The definition for implement is "to carry out or accomplish.", the definition for inflammatory is "Tending to excite anger.", and the definition for accentuate is "To emphasize."

The definition for ecstatic is "Overwhelmingly emotional." Used in a sentence: They were ecstatic when their team won the championship game in the last second. The definition for lurid is "causing horror, shocking.", the definition for periodic is "Occurring at regular intervals.", and the definition for accommodate is "To give consideration to."

The definition for pretense is "False intention or purpose." Used in a sentence: The jewel thief entered the mansion under the pretense of fixing a leaky faucet. The definition for lurid is "causing horror, shocking.", the definition for flaw is "An imperfection.", and the definition for civility is "Politeness."