Merriam-Webster's 11th Edition Collegiate Dictionary & Thesaurus Dictionary: take charge of today's language with access to 225,000 definitions Thesaurus: zero in on the right word with over 340,000 synonyms and antonyms Easy Installation: installs quickly onto your hard drive for instant access anytime Audio pronunciations: including variant pronunciations by real voices 21 search options: more ways to search for the right word than any other dictionary