The definition for combustion is "Act of burning." Used in a sentence: Campers must use fire with great caution to prevent combustion of the parched brush. The definition for plaudits is "enthusiastic approval.", the definition for eulogy is "Speech or writing in praise of deceased.", and the definition for frugal is "Thrifty, cheap."

The definition for regurgitate is "To pour out or throw back." Used in a sentence: The teacher wanted us to examine ideas rather than to regurgitate memorized facts. The definition for turmoil is "extreme confusion, agitation.", the definition for elusive is "Hard to grasp.", and the definition for gruff is "Rough or stern in manner or speech."

The definition for inauspicious is "Not favorable." Used in a sentence: Gary believed the black foreboding sky was an inauspicious sign. The definition for fraud is "trick.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for prominence is "Importance."

The definition for commemorate is "To mark by a ceremony." Used in a sentence: Each year, the Franklins commemorate their anniversary by visiting the site of their first date. The definition for retroactive is "effective as of a prior time or condition.", the definition for disdain is "Feeling of contempt.", and the definition for finite is "Having definite limits."

The definition for apathetic is "Showing little or no emotion." Used in a sentence: Carmine was concerned about his usually cheerful brother's apathetic attitude. The definition for retroactive is "effective as of a prior time or condition.", the definition for elate is "To fill with joy.", and the definition for negate is "To make invalid."