40,000 references. 'Short Cuts' in long entries to help find the right definition quickly. 'Core' vocabulary highlighted to enable learners to concentrate on the most frequent words. Example sentences based on a 100-million-word corpus of American English, reflecting contemporary usage. Over 2,000 notes build learners' vocabulary and prevent common errors. Illustrations depict difficult words or groups of related items. 32 study pages on topics of particular interest in North America, as well as practice of language and study skills. The ESL Genie CD-ROM displays definitions of words instantly or gives their pronunciation when you are using the Internet, sending emails, or word processing. It also recognizes idioms and phrasal verbs and operates on both PCs and Macintosh computers.