The Oxford Dictionary of American English

The Oxford Dictionary of American English responds to the unique needs of the learner by providing explanations, illustrations, and related information not given in ordinary dictionaries. All entries use carefully worded definitions and provide contextual examples of usage, grammar, and idioms.
The Oxford Dictionary of American English Genie comes with the Dictionary, and is a unique electronic dictionary that sits on the desktop. It displays definitions instantly and gives their pronunciation for every word in the Dictionary. It contains hundreds of exercises and full-color illustrations that help build vocabulary. It operates on PC computers.