Merriam Websters Collegiate Dictionary

The most up-to-date dictionary available

10,000 new words and senses from all fields of knowledge
165,000 entries and 225,000 definitions
Detailed symbols show most-common pronunciations and acceptable variants
The features you need

More than 40,000 usage examples-the most in any desk dictionary
Coverage of 7,500 phrases and idioms clarifies meanings and illustrates common use
More than 700 illustrations and diagrams and dozens of informative tables
Expert word guidance

Synonym paragraphs explain different shades of meaning between words
Usage paragraphs provide guidelines for words with confused or disputed usage
A Handbook of Style offers essential information to improve writing skills