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 epitaph is "brief statement honoring a dead person.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for catastrophic is "Relating to extreme misfortune."

The definition for fraud is "Trick." Used in a sentence: The con man's fraud involved selling swampland to gullible investors. The definition for periodic is "occurring at regular intervals.", the definition for flaw is "An imperfection.", and the definition for advantageous is "Giving an advantage."

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 impenitent is "lacking remorse.", the definition for elusive is "Hard to grasp.", and the definition for diffident is "Lacking self–confidence."

The definition for absolve is "To forgive; to free from guilt." Used in a sentence: Marta felt greatly relieved after her mother absolved her for breaking the vase. The definition for comprehensible is "understandable.", the definition for manifest is "Obvious.", and the definition for catastrophic is "Relating to extreme misfortune."

The definition for proximity is "Closeness." Used in a sentence: The proximity of Tia's house to school meant that she could walk there in five minutes. The definition for augment is "to make greater.", the definition for avian is "Relating to birds.", and the definition for naive is "Lacking worldy wisdom."