Merriam-Webster's Essential Learner's English Dictionary, Newest Edition, Mass-Market Paperback (English, Spanish and Multilingual Edition)

A compact and affordable dictionary designed to help students learn spoken and written English as it is actually used.
* More than 54,000 words and phrases that covers both U.S. and British English and their differences
* More than 15,000 idioms, collocations, and commonly used phrases from American and British English
* Clarifies definitions with over 78,000 example sentences and phrases
* Perfect for ESL, EFL, ELL, and TEFL study and instruction