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 incisive is "impressively direct and decisive.", the definition for rehash is "To discuss again.", and the definition for compulsion is "An irresistible impulse."

The definition for elate is "To fill with joy." Used in a sentence: It elated Margaret to be awarded first place in the science fair. The definition for duplicity is "deceptive thought, speech, or action.", the definition for implausible is "Unbelievable.", and the definition for raspy is "rough, grating."

The definition for advantageous is "Giving an advantage." Used in a sentence: The house's location in the best school district was advantageous to the seller. The definition for curtail is "to make less.", the definition for incidental is "Minor.", and the definition for camaraderie is "Spirit of friendship."

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 placebo is "an inactive substance used in medical testing.", the definition for opportune is "Suitable or convenient.", and the definition for melodious is "Having a pleasing melody."

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 embellish is "to decorate.", the definition for serenity is "Calmness.", and the definition for incumbent is "Necessary as a duty or responsibility."