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 brandish is "to shake or wave menacingly.", the definition for augment is "To make greater.", and the definition for inauspicious is "Not favorable."

The definition for perception is "Capacity for seeing or understanding." Used in a sentence: His incredible perception made him the best detective on the force. The definition for implausible is "unbelievable.", the definition for heinous is "Shockingly evil.", and the definition for fidelity is "State of being faithful."

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 heinous is "shockingly evil.", the definition for compulsion is "An irresistible impulse.", and the definition for hedonism is "Belief that pleasure is the sole aim of life."

The definition for serenity is "Calmness." Used in a sentence: The serenity of the glassy sea soothed the sailors after the big storm. The definition for stern is "harsh, severe.", the definition for distortion is "The act of twisting out of shape.", and the definition for finite is "Having definite limits."

The definition for mundane is "Practical, ordinary." Used in a sentence: The flighty Caroline could not be troubled with mundane tasks such as paying her bills. The definition for incisive is "impressively direct and decisive.", the definition for conduit is "Means for transmitting or distributing.", and the definition for advantageous is "Giving an advantage."