ISBN. 0 00 3750949. This is a completely revised and updated edition of the 1990 Collins COBUILD Student's Dictionary. It offers a clear description of the central core of the English Language, focusing on the most frequent words: the words everyone needs to know and use. Dictionary features include: * A Practical Guide, which includes exercise material to help students discover the wealth of information that is available in the dictionary * Two colour text, making it easier for students to find the entry they are looking for * Illustrations throughout the text * Usage notes, which provide further information on points of difficulty or confusion * Reference Section, which provides concise information on a range of topics