while you are creating plugins on your free time this is a great resource and much more interactive than Miriam Websters is http://www.visuwords.com/ Check it out its great software.
Looks like it has been added: http://mycroft.mozdev.org/search-engines.html?name=visuwords
Looks like it has been
Looks like it has been added: http://mycroft.mozdev.org/search-engines.html?name=visuwords