The definition for avian is "Relating to birds." Used in a sentence: The old man affectionately referred to pigeons as his "avian friends." The definition for gruff is "rough or stern in manner or speech.", the definition for disdain is "Feeling of contempt.", and the definition for combustion is "Act of burning."

The definition for eloquent is "Fluent, expressive." Used in a sentence: Kim, an eloquent speaker, was the best choice to make the presentation for the group. The definition for genial is "sympathetic, friendly.", the definition for perception is "Capacity for seeing or understanding.", and the definition for comparable is "Similar, equivalent."

The definition for ethical is "Conforming to accepted standards." Used in a sentence: Mary did the ethical thing and turned in the diamond necklace she found. The definition for pretentious is "making unjustified claims.", the definition for authoritarian is "Favoring absolute obedience to authority.", and the definition for moderate is "Tending toward the average."

The definition for derivative is "Lacking originality." Used in a sentence: Critics panned the movie as a derivative version of last year's Best Picture. The definition for benevolent is "kind, helpful.", the definition for scapegoat is "Someone who bears the blame for others.", and the definition for frugal is "Thrifty, cheap."

The definition for proximity is "Closeness." Used in a sentence: The proximity of Tia's house to school meant that she could walk there in five minutes. The definition for exalt is "to elevate by praise.", the definition for plaudits is "Enthusiastic approval.", and the definition for methodical is "Performed in an orderly manner."