The greatly expanded 11th edition, with new material on every page, is at once the most practical, comprehensive, scholarly, and authoritative law dictionary ever published. For nearly 130 years, Black's Law Dictionary has been the gold standard for the language of the law. With clarity and rigor, it defines more than 55,000 law-related words and phrases, recording their historical and present-day nuances. This edition introduces 3,500 new terms, including accountability, anticipatory self-defense, cyber force, Islamic law, Jewish law, legal moralism, legal reasoning, moral equality, peacekeeping, remotely piloted warfare, right to rebel, and umbrella clause.