Sun Mobile Dictionary is a Free (Full Version) J2ME/MIDP 1.0 based dictionary which can be installed on any Nokia S60, Motorola or Sony Ericsson java mobile phone with the following features:

1. It contains 12208 english words and its English meanings.
2. If a word isn’t found it shows the neighbour word.
3. To learn new words, just click the Search/Next button.
4. It’s search speed is very fast.
5. New words and meanings can added to dictionary very easily

Although its not a huge and complete dictionary like Oxford, it is definitely worth the free price.

Direct download
http://download.getjar.net/downloads/web/pub/8022/smd.jar
http://download.getjar.net/downloads/web/pub/8022/smd.jad