This authoritative dictionary covers the core vocabulary of everyday life and is a must-have for every bookshelf. Features more than 75,000 clear and precise definitions, including new words from a variety of fields Pronunciations, word origins, synonym lists, and over 8,000 usage examples to aid understanding A Guide to Irregular English Verbs, English Word Roots, and Confused and Misused Words are helpful for English-language learners Special features include A Handbook of Style, Basic English Grammar, and An Overview of the Internet.