A dictionary is an ‘English Learner’s’ best friend. Earlier, it was simply a means to know meanings of words but now the function and scope of a dictionary has widened. Today the expectation from a dictionary extends beyond words…..A good dictionary not only gives pronunciations and explanations but also examples of how the word is used by English writers and speakers. Such examples are a big help to those who are constantly making an effort to improve their vocabulary. Often synonyms are given for the words in question. The present uses of a dictionary far surpass the expectation from it. A good dictionary shares the functions of a grammar book.COBUILD Student’s Dictionary and Grammar is a resourceful guide for students and teachers alike. It explains the facts about some confusing words and also helps grasp some of the basics better. A must have for all those who aspire to have a better command over the language.