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 polarize is "to break up into opposing groups.", the definition for commemorate is "To mark by a ceremony.", and the definition for accommodate is "To give consideration to."

The definition for redouble is "To make twice as great." Used in a sentence: As the sun began to set, Brittany redoubled her effort to find the necklace she had dropped in the field. The definition for nurture is "to further the development of.", the definition for fragile is "Delicate.", and the definition for rhapsody is "State of great happiness."

The definition for flaw is "An imperfection." Used in a sentence: The otherwise perfect diamond had a tiny flaw that reduced its value. The definition for pomp is "showy display.", the definition for rancorous is "Marked by deep ill–will.", and the definition for camaraderie is "Spirit of friendship."

The definition for fraud is "Trick." Used in a sentence: The con man's fraud involved selling swampland to gullible investors. The definition for recrimination is "a retaliatory accusation.", the definition for melodious is "Having a pleasing melody.", and the definition for rancorous is "Marked by deep ill–will."

The definition for demean is "To lower status." Used in a sentence: The embarrassing photograph demeaned the candidate in the eyes of the voters. The definition for opportune is "suitable or convenient.", the definition for preclude is "To rule out in advance.", and the definition for mediate is "To come between parties in order to reconcile."