Unique in layout and format, this ground-breaking resource combines two great Webster2s New World reference works in a single volume. Each page is divided into a dictionary section and a thesaurus section. The dictionary section provides concise authoritative definitions, while the thesaurus section below lists corresponding thesaurus entries. You can check the spelling and definition of a word and also research its synonyms -- all at a single glance! Included are over 58,000 dictionary entries, including widely used scientific, professional, and business terms, plus synonyms listed in the order of frequency of use to help you make the right choices.