encyclopedia

Words likely to be used by students are defined in a simple manner for better comprehension. The Dictionary also presents informative illustrative sentences that help clarify meanings.

But this is by no means an abridged reference work. It features more than 225,000 entries, 3000 illustrations, notes on how to use prefixes, suffixes, capitalization and punctuation, pronunciation guides, and more. It's the final word in state-of-the-art dictionaries.