Longman Dictionary of Contemporary English

This is not a "junior dictionary." This dictionary is a 100% up-to-date state of the art dictionary with a comprehensive listing of any word you might encounter as well as a key for how to use it in a sentence. With that key, students can figure out how to use the word properly in speech and composition. The dictionary itself is a learning tool because the definitions of the 60,000+ words included are limited to a 2000-word vocabulary, giving the student practice while learning new words. Additionally, the dictionary has many illustrations and diagrams which list thematic vocabulary (for example everything that is under the hood of a car or everything that is in a fully-equipped kitchen). The definitions are clear and precise: look at the definition for the word "piece." In that definition you will find a flow-chart with questions like, "Is it solid?" "Is it thin?" and so on, leading the learner to words like "drop, dash, squirt, wisp, chunk, slice, slab, segment, grain, speck...." My reading students, whose first language is English, love this book also, because the defining vocabulary is within their range. It is comprehensive enough that even teachers will find definitions of unfamiliar words (for example, I just learned that "chock" is a block of wood used to wedge under a tire). This book is the best investment a student can make. It is also an investment that every teacher should make in service to his/her students