This dictionary features a clear and accessible defining style, abundant synonym notes, full-page tables and charts, hundreds of drawings that complement the definitions, and authoritative guidance on usage and style points. It also includes extensive coverage of Americanisms (words, phrases, and senses coined by an American or first used in the United States), all 12,000 of which are specially identified. This brand-new edition has been completely revised. More than 4,700 entries and senses have been added, including terms from the areas of arts and sports, science and medicine, computers and the Internet, food, business, politics, and law (examples include biodefense, cage match, celebutante, derecho, deleverage, hashtag, stevia , and webinar ). Tens of thousands of revisions have been made to existing senses to reflect current usage. Webster's New World College Dictionary is the perfect dictionary for use at school, at the office, or at home.