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 impenitent is "lacking remorse.", the definition for extol is "To praise highly.", and the definition for regurgitate is "To pour out or throw back."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for embellish is "to decorate.", the definition for appraise is "To evaluate the worth of.", and the definition for incisive is "Impressively direct and decisive."

The definition for revoke is "To cancel by taking back." Used in a sentence: After Kal's father revoked his allowance, he had no money for the movies. The definition for mandate is "an official order or commission to do something.", the definition for archetypal is "Characteristic of the original model or perfect example.", and the definition for scamper is "To run quickly."

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 surplus is "excess.", the definition for exasperation is "The state of being irritated.", and the definition for clarity is "Clearness."

The definition for heinous is "Shockingly evil." Used in a sentence: Eduardo's heinous betrayal of Lydia shocked even Latasha, who knew his evil ways. The definition for benefactor is "one who offers financial help.", the definition for clarity is "Clearness.", and the definition for futile is "Without purpose, completely ineffective."