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 iridescent is "having a lustrous or attractivve quality.", the definition for sociable is "Inclined to seek companionship.", and the definition for prune is "To reduce by removing excess."

The definition for prominence is "Importance." Used in a sentence: The singer's prominence ensured that the concert would sell out. The definition for distortion is "the act of twisting out of shape.", the definition for epistolary is "Contained or carried on in letters.", and the definition for retroactive is "effective as of a prior time or condition."

The definition for gravity is "Importance, significance." Used in a sentence: Understanding the gravity of his error, Ken offered his humblest apology. The definition for preclude is "to rule out in advance.", the definition for heinous is "Shockingly evil.", and the definition for rancorous is "Marked by deep ill–will."

The definition for disconcert is "To throw into confusion." Used in a sentence: Jennifer's outspoken criticism of the meal disoncerted the waiter. The definition for rehash is "to discuss again.", the definition for appraise is "To evaluate the worth of.", and the definition for pathos is "Sympathetic pity."

The definition for egotist is "Self–important person." Used in a sentence: Darren dreaded carpooling with the egotist Shelly, who talked about herself nonstop. The definition for repel is "to resist, reject.", the definition for extant is "Currently existing.", and the definition for polarize is "To break up into opposing groups."