The best English dictionary for learners in existence. The complete sentence definitions are always extremely clear. What's more, because they're in complete sentences, a student can read this dictionary like a novel or newspaper, for pleasure as well as edification. There is also the effect that by reading how these definitions are constructed, students can more easily describe the words they are trying to communicate when conversing with native speakers who do not know their language. This is the big dictionary, but there are other versions in smaller sizes. Many of my students over the past thirty years have told me they were surprised to actually fall in love with a dictionary.