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 retroactive is "effective as of a prior time or condition.", the definition for immoderate is "Beyond usual or proper limits.", and the definition for benefactor is "One who offers financial help."

The definition for accessible is "Easy to reach or to approach." Used in a sentence: The introduction to the complex novel was, thankfully, written in clear accessible language. The definition for untenable is "not able to be defended.", the definition for fickle is "Lacking constancy, changeable.", and the definition for illuminate is "To make clear."

The definition for incidental is "Minor." Used in a sentence: The accountant advised Justine not to report her incidental expenses. The definition for equitable is "fair and equal.", the definition for colossal is "Immense, enormous.", and the definition for demeanor is "Behavior towards others."

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 proximity is "closeness.", the definition for condone is "To treat as acceptable.", and the definition for duplicity is "Deceptive thought, speech, or action."

The definition for eloquent is "Fluent, expressive." Used in a sentence: Kim, an eloquent speaker, was the best choice to make the presentation for the group. The definition for salvage is "to save from ruin.", the definition for prune is "To reduce by removing excess.", and the definition for avian is "Relating to birds."