Merriam-Webster's Dictionary of Basic English in Bloomington, MN

This dictionary is designed for people with limited English language skills and is a great tool for ESL students.
Features more than 36,000 entries with concise, easy-to-use definitions. Nearly 20,000 usage examples, word history and synonym paragraphs, and over 400 detailed line drawings to clarify meanings.
Special sections include: Signs and Symbols; Confused, Misused, and Misspelled Words; English Grammar; and Weights and Measures.