India, March 14 -- We have a love of words. Think crosswords, Scrabble and texting. Think chatting to a friend, listening to a story, sharing a joke or hearing a speech by the orator of your choice - Churchill, Obama or Mandela. Moreover, we are never satisfied with the words we have, frequently changing their meanings and inventing new ones. Think tablets, clouds and surfing. Where do you keep all of those words? How do you know which ones to use, and how to combine them to make a statement or ask a question that someone else will understand?

Just as we love words, we know their power and may fear their consequences. We know how a few ill-thought-out words can damage a relationship and flunk an interview; how eloquent politicians can sw...