The NEW 11th edition includes 225,000 definitions, 115,000 audio pronunciations, 340,000 synonyms & related words, 21 search options, & a free 1-year subscription to the Merriam-Webster Collegiate Web site!

Writers, students, or people who just like to write precise yet imaginative emails - Merriam-Webster’s Collegiate Dictionary and Thesaurus is the perfect companion for all of your writing and reading endeavors.
The most impressive aspect of this program is the number of ways that you can search for a word. Search by definition, synonyms, homophones, rhyming words and even by a particular year. And, if you’re not sure how to pronounce your new-found word, you can listen to the pronunciation.
This is the full version containing a dictionary iso file about 620 MB and an add-on file about 80 MB.