title: Natural English language words
body: <p>I need the most exhaustive English word list I can find for several types of language processing operations, but I could not find anything on the internet that has good enough quality.</p>
  
  <p>There are 1,000,000 words in the English language including foreign and/or technical words. </p>
  
  <p>Can you please suggest such a source (or close to 500k words) that can be downloaded from the internet that is maybe a bit categorized? What input do you use for your language processing applications?</p>