Is there a public API which would let me lookup definitions for words ? I've been searching for this for a bit but it's getting mixed up with the dictionary datastructure. I'm planing on using it in a c# app.
Thanks
If you are language agnostic, you could try
Ruby WordNet
http://deveiate.org/projects/Ruby-WordNet/
and check out the WordNet project in general,
for .NET...