The Merriam-Webster Dictionary

Based on Merriam-Webster's Collegiate Dictionary, 11th edition 70,000 definitions 2,000 new words Expanded back matter sections: Confused and Misused Words English Word Roots - Great for preparing standardized tests Irregular English Verbs - Great for ESL Basic English Grammar Handbook of Style, including Documentation of Sources Guide to Common Verb Collocations - Essential for ESL NEW: An Overview of the Internet