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 pallid is "lacking color.", the definition for untenable is "Not able to be defended.", and the definition for raucous is "Noisy, rowdy."

The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for gargantuan is "gigantic.", the definition for comparable is "Similar, equivalent.", and the definition for antidote is "Something that relieves or counteracts."

The definition for servile is "Fearfully submissive." Used in a sentence: Felicia's servile attitude annoyed her boss, who preferred an assistant with more backbone. The definition for colossal is "immense, enormous.", the definition for liability is "A person or thing whose presence or behavior is likely to cause embarrassment or put one at a disadvantage.", and the definition for periodic is "Occurring at regular intervals."

The definition for scapegoat is "Someone who bears the blame for others." Used in a sentence: Audrey used her innocent baby brother as a scapegoat for the missing cookies. The definition for incongruous is "not harmonious, incompatible.", the definition for sociable is "Inclined to seek companionship.", and the definition for epistolary is "Contained or carried on in letters."

The definition for revive is "To bring back to life." Used in a sentence: Hank tried to revive Clare's interest in the project, but her enthusiasm had expired. The definition for equitable is "fair and equal.", the definition for appraise is "To evaluate the worth of.", and the definition for exasperation is "The state of being irritated."