I found a very good dictionary website from google. See the link below
http://www.google.com.au/dictionary
The good thing I can see it it provides descriptions of the word rather than definitions only. For instance, misnomer
descriptions
If you say that a word or name is a misnomer, you mean that it describes something incorrectly. Noun (countable) usu 'a' N in sing
Herbal `tea' is something of a misnomer because these drinks contain no tea at all.
definitions
A misnomer is a term which suggests an interpretation that is known to be untrue. Such incorrect terms sometimes derived their names because of the form, action, or origin of the subject—becoming named popularly or widely referenced—long before their true natures were known.
I love that.
本文转自Jake Lin博客园博客,原文链接:http://www.cnblogs.com/procoder/archive/2010/05/11/Google_dictionary.html,如需转载请自行联系原作者