Nisus Software today announced the release of Nisus Thesaurus 1.0, a fast electronic thesaurus that automatically integrates with any Service aware application including Nisus Writer Express, Mail, TextEdit, Safari, and more. The application is based on the WordNet lexical database and features a 120,000 word database, Cocoa-based interface, integration with any services enabled application, built-in glossary, offensive words filter and more. Nisus Thesaurus requires Mac OS X 10.2 or later and is compatible with Mac OS X 10.3 (Panther). Nisus Thesaurus is available as a free download now.