I’m a big fan of Google’s “define:” functionality (in google search, type define: life to see it). Recently, Google released a dedicated dictionary page, so I thought I’d create a nice little Firefox keyword bookmark to do this from the address-bar itself. And here’s how this works:
- Go to http://www.google.com/dictionary?hl=en
- Right-click on the search-field, and select “Add a Keyword for this search”
- Save this to your bookmarks with a keyword define
- That’s it!
Now every time you want to get a definition of something, all you have to do is type define [your_word] in the address bar, and see the most current definition come up!
(NOTE: this snapshot shows address bar with “define firefox” in it, but that will change automatically once you hit return. I just left it there so you can see what to type.)
Google offers dictionaries for A LOT of languages. 
So you may choose to do this with endef (for English definition) spdef (for Spanish) gudef (for Gujarati) and whatever have you!
I hope this helps some of you! Let me know if you come up with some fun hacks of your own :)
