title: Finding a list of 'domain specific related words' from a given word
body: <p>Is there a API which gives me a domain specific related words when I give it a word.</p>
  
  <p>I mean, I provide the system with 'Artificial Intelligence' in returns me words like 'Neural Network','Supervised learning','Hill Climbing' and many others.</p>
  
  <p>If none available out of the box, is making this thing possible? If it is, what resource should I be consulting to build this thing.</p>