Ding is a  Dictionary lookup program for the  X window system  (Linux,
Unix - not for  Mac  or  MS Windows).  It comes with a  German-English
Dictionary  with  approximately  326,000  entries.  It is  an  offline
version of the dictionary found at:

    <URL:http://dict.tu-chemnitz.de/>.

It is based on Tk version >= 8.3 and uses the agrep or egrep tools for
searching.

It  has  many  configuration  options,  such  as  search  preferences,
interface  language (English  or German),  colors. It has  history and
help functions and comes with useful  key and mouse bindings for quick
and easy lookups.

WWW: https://www-user.tu-chemnitz.de/~fri/ding/