Web service idea

Purely for fun, from philanthropic motives: an automatic free service found in the best (say top in Digg, or Reddit, or Techmeme) blog posts are rare in general, but trendy words at the moment (for example, redux), and giving their translation (if necessary), definitions and examples of use from online dictionaries (so that you can read and understand blog posts normally, or, say, use them correctly in your blog). In short, the web version of the school poster, "Speak right."