Based on Webster's third new international dictionary.
A learning dictionary, this contains 56,000 words and phrases and 75,000 examples plus language notes to explain appropriate use of language and usage notes to aid word choice and grammatical understanding.
An English language dictionary for learners of English.
Longman Active Study Dictionary of English
Oxford Advanced Learner's Dictionary of Current English
Includes over 1000 new entries, this title is based on the ninth edition of the 'Chambers dictionary'.