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 revoke is "to cancel by taking back.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for meticulous is "Extrememly careful regarding details."

The definition for censure is "To find fault with." Used in a sentence: The critical teacher was quick to censure her students for even small mistakes. The definition for inauspicious is "not favorable.", the definition for exalt is "To elevate by praise.", and the definition for frugal is "Thrifty, cheap."

The definition for opportune is "Suitable or convenient." Used in a sentence: Quan stepped onto the platform at the most opportune time, just as the train pulled in. The definition for buffer is "protective barrier.", the definition for buffoonery is "Foolish behavior.", and the definition for inviolable is "Secure from assault of trespass."

The definition for drab is "Dull, monotonous." Used in a sentence: The drab winter scene made Keisha long for the vibrant colors of spring. The definition for ramble is "to wander, physically or in language.", the definition for fickle is "Lacking constancy, changeable.", and the definition for immoderate is "Beyond usual or proper limits."

The definition for immoderate is "Beyond usual or proper limits." Used in a sentence: Bob's immoderate appetite shocked the guests at the wedding banquet. The definition for catastrophic is "relating to extreme misfortune.", the definition for extol is "To praise highly.", and the definition for embellish is "To decorate."