The definition for rancorous is "Marked by deep ill–will." Used in a sentence: The rancorous competition between the two chess clubs actually ended in a brawl. The definition for trove is "valuable collection.", the definition for buffer is "Protective barrier.", and the definition for corrosive is "Bitingly sarcastic."

The definition for augment is "To make greater." Used in a sentence: Wanda read the dictionary every night to augment her vocabulary. The definition for eulogy is "speech or writing in praise of deceased.", the definition for heed is "To pay attention to.", and the definition for iridescent is "Having a lustrous or attractivve quality."

The definition for aerate is "To supply with air." Used in a sentence: Every spring, Soloman used his tiller to aerate the compact soil. The definition for precept is "a general rule of action.", the definition for turmoil is "Extreme confusion, agitation.", and the definition for punctual is "On time."

The definition for extenuating is "Partially excusing." Used in a sentence: The extenuating circumstance of Calvin's illness caused the teacher to excuse his lateness. The definition for drab is "dull, monotonous.", the definition for distortion is "The act of twisting out of shape.", and the definition for indecorous is "In bad taste."

The definition for prune is "To reduce by removing excess." Used in a sentence: The candidate pruned his speech so he would not exceed the time limit. The definition for ploy is "a contrived plan.", the definition for apathetic is "Showing little or no emotion.", and the definition for inflammatory is "Tending to excite anger."