The definition for illuminate is "To make clear." Used in a sentence: Her excellent lecture illuminated the complicated subject of nuclear physics. The definition for periodic is "occurring at regular intervals.", the definition for anthology is "A collection of selected literary pieces.", and the definition for appraise is "To evaluate the worth of."

The definition for colossal is "Immense, enormous." Used in a sentence: After pushing with all his might, Frank realized he could never move the colossal boulder. The definition for melodious is "having a pleasing melody.", the definition for civility is "Politeness.", and the definition for egotist is "Self–important person."

The definition for clarity is "Clearness." Used in a sentence: The refreshing water in the mountain stream was remarkable for its clarity. The definition for drab is "dull, monotonous.", the definition for solace is "Source of consolation.", and the definition for awe is "Emotion combining dread and wonder."

The definition for turpitude is "Essential baseness, depravity." Used in a sentence: The turpitude of the villain in the movie offended most audiences. The definition for untenable is "not able to be defended.", the definition for catastrophic is "Relating to extreme misfortune.", and the definition for turpitude is "Essential baseness, depravity."

The definition for extenuating is "Partially excusing." Used in a sentence: The extenuating circumstance of Calvin's illness caused the teacher to excuse his lateness. The definition for corroborate is "to support with evidence.", the definition for illuminate is "To make clear.", and the definition for unscrupulous is "Lacking principles."