Longman Dictionary of American English (+ CD-ROM)

The Longman Dictionary of American English is the only intermediate learner's dictionary completely based on natural spoken and written corpus of American English. — 95,000 words and phrases, including all words on the Academic Word List — 36,000 examples based on the Longman American Corpus — Hybrid e-Tutor CD-ROM containing interactive practice, Thesaurus, videos, and audio of words and sample sentences