The document defines 20 vocabulary words from chapters 1-5 of Advanced Word Power, including affinity, fledgling, hackneyed, opulence, proximity, sagacious, supplant, unassailable, voluminous, brusque, dispassionate, effervescent, indefatigable, misanthrope, morose, nonchalance, progeny, stoic, voracious, coalesce, decadence, exemplary, exuberance, incidental, insolvent, parsimonious, prodigal, surreptitious, writhe, brevity, clemency, frivolous, heist, lampoon, querulous, reproach, resp