Reason #1: You didn't use Google. FT search hasn't been that helpful. (Go to Technical Issues Forum and you'll know why).

Reason #2: try different key words for search, such as "dictionary", to get more hits.

To the best of my knowledge, there are more than one thread on this topic. Here's one example thread: http://www.flyertalk.com/forum/trave...tionaries.html

Good luck on your search!