Definition: discuss or mention
Usage: They spoke of many things
Definition: express in speech
Usage: She talks a lot of nonsense; This depressed patient does not verbalize
Definition: to consider or examine in speech or writing
Usage: The author talks about the different aspects of this question; The class discussed Dante's `Inferno'
Definition: act on verbally or in some form of artistic expression
Usage: This book deals with incest; The course covered all of Western Civilization; The new book treats the history of China