A classic reference book that has been used by millions all over the world, Roget's International Thesaurus is the product of more than a century and a half of continuous expansion, reorganization, and improvement. Today, this book is not only the most time-tested and bestselling thesaurus ever, but, newly revised, it is also the most up-to-dateand comprehensive reflection of theEnglish language as it is currently used.

The revolutionary achievement of Dr. Peter Mark Roget's first edition in 1852 was the development of a brand-new principle: the arrangement of words and phrases according to their meanings. Dr. Roget's system brings together in one place all the terms associated with a single thought or concept; it allows a wide-ranging survey of language within a book of relatively modest size, without the space-consuming repetitions that so severely limit the scope of thesauruses arranged in a dictionary format with A-to-Z entries. This brilliant organization makes Roget's International Thesaurus both the most efficient word finder and a cutting-edge aid in stimulating thought, organizing ideas, and writing and speaking more clearly and effectively.

This revised and updated sixth edition features thousands of new words and phrases, including the newest slang words and expressions that color and inform everyday language. At the same time, it retains all of the hallmarks that have made Roget's international Thesaurus an enduring classic:

• More than 330,000 words and phrases organized into 1,075 categories.

• A pinpoint reference system that directs the user quickly from a comprehensive index to the numbered category of the right word. Thousands of cross-references throughout lead to other helpful categories.

• Hundreds of supplemental word lists that supply the names of things which have no synonyms (measurements, wines, weapons, animals, state mottoes, and more) as well as hundreds of quotations that amplify the meanings of selected words.