my new favorite dictionary site
As you may know, Google has a built in dictionary search - type in "define:" followed by the word you need defined and Google returns with an array of dictionary options. This is very handy and it's all well and good, but this is not the site I was going to mention. My new favorite dictionary website is NinjaWords.com - check it out. It's simple and fast [much like Google] and although it doesn't have many extras . . . well, it's simple and fast!
Here's an even better thing: using Firefox [you are using Firefox, aren't you?] you can install the Dictionary Search extension and configure it to use NinjaWords.com instead of or in addition to the default dictionary site. Excellent, I say. Simple and fast.