Originally, this achievement was glitched on windows 8, if you had played the windows phone version of the game.
In the glitch, if you had played 200 or more words, both this achievement and the following achievement would have been glitched: Alternately, if you haven't played the Windows Phone version, this will pop normally at 100 words played in online games.
If you've played between 100-199 or more words, only the above achievement would have been glitched, and this achievement would not have been.EDIT:
The glitch has now been patched. If you suffered from this glitch, sign into live through Alphajax on Win 8, and go to your stats page. This achievement will then pop, as well as the above achievement.