If you cannot find a word on your turn, you may use your turn to swap tiles instead. Select “Swap” from the menu and click on the tiles you want to swap. Those tiles will return to the bag, and you’ll receive new tiles in their place. This counts as your turn, scoring zero points, and your opponent will get the next move. But if you have very poor tiles (all vowels, all consonants, etc.), this can sometimes be your best option!