This is an online dictionary which can be accessed as often as needed.
It''s convenient, flexible and allows a
quick search in
different languages such as English, Spanish, German, French, Italian, Potuguês, Dutch, Norwegian, Greek and Russian.
Often you can find here words that are not in other dictionaries. Also, one thing they only few sites do is that in their mother language which is English, there is posibillity to heat pronunciation of the word, in the U.S. or British accent.
There are many options within this site, thera are games in wich person can interact and learn beter the language, ranging from the "hanging" or simple as to hear a word and then write it correctly.
Part of the topics that can be found in this dictionary are medicine, words related to legal issues, computer-related vocabulary, results in Wikipedia related to your search and others. It can also be used as an encyclopedia that helps you at any time, especially now that technology is one of the largest utilities that you have in life.
As an extra, can be found at the site a news of the day, it is also interesting way to learn about other cultures.
I recommend this web site one hundred percent due to the broad level of knowledge that is employ, to its great level of detail and complexity, very different from others.