WWF meaning in Internet ?

Words with Friends is a multiplayer word game developed by Newtoy. Players take turns building words crossword-puzzle style in a manner similar to the classic board game Scrabble. The rules of the two games are similar, but Words with Friends is not associated with the Scrabble brand. Up to 40 games can be played simultaneously using push notifications to alert players when it is their turn. Players may look up friends either by username or through Facebook, or be randomly assigned an opponent through "Smart Match". Players can also find potential opponents using Community Match.

Released in July 2009, Words with Friends is available for cross-platform play on devices running the operating systems Android, Windows Phone, and iOS (iPad, iPhone, iPod Touch). The game is also available on Facebook, Kindle Fire, and Nook Tablet. In addition, there is a chat feature built into the game that allows opponents to exchange messages. Between 2010 and 2011, Words with Friends was one of the top ranking games in the iOS app store, available as both a free ad-supported version and a paid version with no "third party ads between turns". As of May 2017, Words with Friends was the most popular mobile game in the United States. A sequel to the game, Words with Friends 2, came out in September 2017.