WordWeb is a free cut-down version of the WordWeb Pro software. It includes a comprehensive English thesauruas and dictionary, and can be used to look up words from within most programs. Version 5.5 is now available (an update to version 5).
* Support for one-click lookup in all Firefox versions
* Preferences option not to show suggestion drop-down
* Database updates and minor bug fixes
* Better installation/update checks on used files
* (Pro) Full Text Search option to match whole words