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 implausible is "unbelievable.", the definition for inauspicious is "Not favorable.", and the definition for buffer is "Protective barrier."

The definition for finite is "Having definite limits." Used in a sentence: The exasperated mother had finite patience for her toddler's tantrums. The definition for exalt is "to elevate by praise.", the definition for compulsion is "An irresistible impulse.", and the definition for apathetic is "Showing little or no emotion."

The definition for naive is "Lacking worldy wisdom." Used in a sentence: The naive Simon assumed that everyone was as simple and kind as he was. The definition for advantageous is "giving an advantage.", the definition for euphoria is "Feeling of great happiness.", and the definition for insolence is "Boldness or rudeness."

The definition for authoritarian is "Favoring absolute obedience to authority." Used in a sentence: Marco's authoritarian mother never allowed him to watch more than one hour of television a day. The definition for opportune is "suitable or convenient.", the definition for commemorate is "To mark by a ceremony.", and the definition for rehash is "To discuss again."

The definition for conduit is "Means for transmitting or distributing." Used in a sentence: Jason, a notorious gossip, was a conduit for information about his friends. The definition for extenuating is "partially excusing.", the definition for euphoria is "Feeling of great happiness.", and the definition for avian is "Relating to birds."