Manufacturer: HOUGHTON MIFFLIN COMPANY

2007 Copyright Updated Edition. Unique passkey allows user to download the full dictionary and a complete thesaurus with more than 260,000 synonyms. Fully loadable for Windows or Mac. 7,500 new words and updated definitions in all subject areas as well as 2,500 new images. New computer and Internet terms, also newly coined words in science, politics, business and the arts. More in-depth features and example sentences.