It is the most authoritative, effective and practical word finding tool ever devised. This edition contains thousands of new words, including colloquialisms, slang and scientific terms. Each listing of a word contains the synonyms that best define it, plus a cross reference to at least one other word. If you have ever racked your brains for a better word, or a more vivid or descriptive phrase. Your search is over. _ Essential for home, school, office. _ Complete, authoritative, accurate. _ Arranged for quick, easy reference. _ Improves your reading and writing immediately. _ Over 6 Million copies sold!