Definition: speak with others about (something); talk (something) over in detail; have a discussion
Usage: We discussed our household budget
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