Timed out on Words With Friends 2

In words with friends two if you time out (after 10 days of non-play and after your opponent nudges you) it's considered a loss for you because non play is considered "Resigning".

In your game log it'll actually register the game as "You/They Timed Out". After you play with an opponent 3 times and they time out all 3 times you receive the option to block future game requests from them.