The document defines 20 vocabulary words through examples of how each word is used in a sentence. It provides the definition, part of speech, and a short sample sentence for each of the following words: trepidation, tirade, adulation, admonish, impede, incandescent, plethora, proximity, opaque, obstinate, docile, diligent, redundant, ravenous, concur, debacle, garrulous, guile, elude, emulate.