I don\'t know whether StackOverflow covers NLP, so I am gonna give this a shot. I am interested to find the semantic relatedness of two words from a specific domain, i.e. \"imag
Check out google similarity distance - http://arxiv.org/abs/cs.CL/0412098 eg. if lots of webpages include them both, theyre probably related.
demo program at http://mechanicalcinderella.com
Other than that, you could try to translate a project like wordnet ((google translate could help), or start a collaborative ontology.