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 rehash is "to discuss again.", the definition for avian is "Relating to birds.", and the definition for redouble is "To make twice as great."

The definition for exasperation is "The state of being irritated." Used in a sentence: The longer Jorge waited in line at the ticket counter, the more his exasperation grew. The definition for onset is "beginning.", the definition for revive is "To bring back to life.", and the definition for gravity is "Importance, significance."

The definition for appalling is "Inspiring dismay or disgust." Used in a sentence: Hector found his roommate's habit of leaving his dirty socks on the floor appalling. The definition for mediate is "to come between parties in order to reconcile.", the definition for embellish is "To decorate.", and the definition for ethical is "Conforming to accepted standards."

The definition for buffer is "Protective barrier." Used in a sentence: The dense trees acted as a buffer against the heavy rain. The definition for finite is "having definite limits.", the definition for derivative is "Lacking originality.", and the definition for insinuate is "To suggest indirectly."

The definition for incisive is "Impressively direct and decisive." Used in a sentence: Samir's incisive leadership made him the natural choice for president of the company. The definition for cunning is "showing clever insight.", the definition for penurious is "Extrememly stingy.", and the definition for futile is "Without purpose, completely ineffective."