Merriam-Webster's Advanced Learner's English Dictionary

Newly Revised & Updated. Designed to help advanced students master spoken and written English as it is actually used, this groundbreaking dictionary provides in-depth and up-to-date coverage of basic English vocabulary, grammar, and usage. Features more than 100,000 words and phrases defined with 3,000 core vocabulary words identified. New words added include eco-friendly, fracking, social media, and hashtag. Includes more than 160,000 usage examples, more than 22,000 idioms, verbal collocations, and commonly used phrases, and more than 1,000 original drawings-including 16 pages of full-color art. Abundant supplemental information includes 30 pages of grammar. Perfect for ESL, EFL, ELL, and TEFL study and instruction.