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 naive is "lacking worldy wisdom.", the definition for deferment is "The act of delaying.", and the definition for stealth is "The act of moving secretly or unnoticed."

The definition for inviolable is "Secure from assault of trespass." Used in a sentence: Situated on a mountain, with sixteen–foot walls, the castle was inviolable. The definition for incumbent is "necessary as a duty or responsibility.", the definition for interminable is "Never ending, or seemingly endless.", and the definition for untenable is "Not able to be defended."

The definition for derelict is "Abandoned." Used in a sentence: The derelict house was condemned as a public hazard. The definition for rancorous is "marked by deep ill–will.", the definition for genial is "Sympathetic, friendly.", and the definition for melee is "A tumultuous fight among several people."

The definition for genial is "Sympathetic, friendly." Used in a sentence: The genial host warmly greeted his many guests. The definition for appalling is "inspiring dismay or disgust.", the definition for straddle is "To favor opposing sides.", and the definition for untenable is "Not able to be defended."

The definition for methodical is "Performed in an orderly manner." Used in a sentence: Oscar's methodical approach exasperated his free–spirited friend Ben. The definition for entangle is "to involve in trouble.", the definition for aesthete is "Person having or affecting sensitivity to beauty.", and the definition for colossal is "Immense, enormous."