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 combustion is "act of burning.", the definition for incongruous is "Not harmonious, incompatible.", and the definition for antidote is "Something that relieves or counteracts."

The definition for frugal is "Thrifty, cheap." Used in a sentence: The frugal shopper only bought items that were on sale. The definition for censure is "to find fault with.", the definition for prune is "To reduce by removing excess.", and the definition for derivative is "Lacking originality."

The definition for archetypal is "Characteristic of the original model or perfect example." Used in a sentence: Shakespeare's sonnets are considered archetypal love poems The definition for naive is "lacking worldy wisdom.", the definition for periodic is "Occurring at regular intervals.", and the definition for precept is "A general rule of action."

The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for mandate is "an official order or commission to do something.", the definition for extol is "To praise highly.", and the definition for authoritarian is "Favoring absolute obedience to authority."

The definition for mundane is "Practical, ordinary." Used in a sentence: The flighty Caroline could not be troubled with mundane tasks such as paying her bills. The definition for salvage is "to save from ruin.", the definition for dubious is "Questionable.", and the definition for pretentious is "Making unjustified claims."