Answers.com – One Click Definitions

Have you ever wished you could have a dictionary with you as you were reading documents? Well Answers.com has the answer with two solutions.
You can go directly to answers.com and receive a single, unified list of facts culling information from hundreds of online encyclopedias and other reference tools like Wikipedia. Instead of providing thousands of links where an Answer might be found, Answers.com actually provides them.
Or you can download a “1-click” application from Answers.com and within a document you can press the “alt” button on your computer and the word in question. You will then be presented with the definition of the word in a tool bar visible on your computer screen