The definition for onset is "Beginning." Used in a sentence: Crocuses bloom at the onset of spring, sometimes even before the snow melts. The definition for immoderate is "beyond usual or proper limits.", the definition for accessible is "Easy to reach or to approach.", and the definition for plaudits is "Enthusiastic approval."

The definition for trove is "Valuable collection." Used in a sentence: Walter's trove of vintage baseball cards was worth thousands of dollars. The definition for heed is "to pay attention to.", the definition for augment is "To make greater.", and the definition for gargantuan is "Gigantic."

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 mediate is "to come between parties in order to reconcile.", the definition for buffoonery is "Foolish behavior.", and the definition for dubious is "Questionable."

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 clarity is "clearness.", the definition for servile is "Fearfully submissive.", and the definition for pretentious is "Making unjustified claims."

The definition for preclude is "To rule out in advance." Used in a sentence: "Having cake now will preclude dessert later," said Amber's mother. The definition for curtail is "to make less.", the definition for straddle is "To favor opposing sides.", and the definition for extant is "Currently existing."