The definition for diffident is "Lacking self–confidence." Used in a sentence: The diffident student never raised her hand in class, even when she knew the answer. The definition for regale is "to amuse.", the definition for serenity is "Calmness.", and the definition for gruff is "Rough or stern in manner or speech."

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 accommodate is "to give consideration to.", the definition for indecorous is "In bad taste.", and the definition for avian is "Relating to birds."

The definition for turmoil is "Extreme confusion, agitation." Used in a sentence: The windstorm caused such turmoil in the lake that the sailboat capsized. The definition for brandish is "to shake or wave menacingly.", the definition for scapegoat is "Someone who bears the blame for others.", and the definition for raspy is "rough, grating."

The definition for flaunt is "To display showily." Used in a sentence: Sheila, who could not resist bragging, flaunted the "A" marked on her test paper. The definition for stealth is "the act of moving secretly or unnoticed.", the definition for eulogy is "Speech or writing in praise of deceased.", and the definition for nurture is "To further the development of."

The definition for facade is "false or superficial appearance." Used in a sentence: Emily's smile is just a facade masking her broken heart. The definition for scapegoat is "someone who bears the blame for others.", the definition for unscrupulous is "Lacking principles.", and the definition for mediate is "To come between parties in order to reconcile."