Words With Friends Cheat has all the resources you need to win all the games you play.  You can also use this website to help you learn to be a better player.  You can use the Words With Friends Dictionary search to check and see if any word is valid for gameplay and is part of the dictionary used in the game.  You can use the Anagram page to find words with your letters, build words from your letters using the Build or Word Builder page and find all the words you can play using the Word Find page.  If you need help you can visit the Word Generator or Cheat pages to assist you in generating the longest possible words from your rack letters including words and letters that are already on the board.