title: Detect similar sounding words in Ruby
body: <p>I'm aware of SOUNDEX and (double) Metaphone, but these don't let me test for the similarity of words as a whole - for example "Hi" sounds very similar to "Bye", but both of these methods will mark them as completely different.</p>
  
  <p>Are there any libraries in Ruby, or any methods you know of, that are capable of determining the similarity between two words? (Either a boolean is/isn't similar, or numerical 40% similar)</p>
  
  <p><strong>edit:</strong> Extra bonus points if there is an easy method to 'drop in' a different dialect or language!</p>