I think you should make the old wods you used in the same game not count, so it encourages players to use more new words instead of repeating the same ones all over again. Also when the word is counted the timer doesn't stop and it is very long, as a result the bigger word you type the more time you need to wait before you can type again. It kind of undermines the value of big words then. Apart from that, nice little game, I had fun in it!